/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --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/Problem14_label00.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 21:37:57,455 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 21:37:57,459 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 21:37:57,505 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 21:37:57,505 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 21:37:57,513 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 21:37:57,515 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 21:37:57,519 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 21:37:57,521 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 21:37:57,524 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 21:37:57,525 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 21:37:57,526 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 21:37:57,526 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 21:37:57,529 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 21:37:57,531 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 21:37:57,532 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 21:37:57,534 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 21:37:57,536 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 21:37:57,537 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 21:37:57,545 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 21:37:57,547 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 21:37:57,548 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 21:37:57,549 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 21:37:57,549 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 21:37:57,561 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 21:37:57,562 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 21:37:57,562 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 21:37:57,571 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 21:37:57,572 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 21:37:57,573 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 21:37:57,573 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 21:37:57,574 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 21:37:57,576 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 21:37:57,577 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 21:37:57,578 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 21:37:57,578 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 21:37:57,579 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 21:37:57,579 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 21:37:57,579 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 21:37:57,580 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 21:37:57,581 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 21:37:57,583 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 21:37:57,620 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 21:37:57,620 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 21:37:57,623 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 21:37:57,623 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 21:37:57,623 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 21:37:57,623 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 21:37:57,624 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 21:37:57,624 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 21:37:57,624 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 21:37:57,624 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 21:37:57,625 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 21:37:57,625 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 21:37:57,625 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 21:37:57,626 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 21:37:57,626 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 21:37:57,626 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 21:37:57,626 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 21:37:57,627 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 21:37:57,627 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 21:37:57,627 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 21:37:57,627 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 21:37:57,627 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 21:37:57,628 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 21:37:57,628 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 21:37:57,628 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 21:37:57,628 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 21:37:57,628 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 21:37:57,628 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 21:37:57,629 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 21:37:57,629 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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-14 21:37:57,974 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 21:37:57,988 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 21:37:57,991 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 21:37:57,993 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 21:37:57,993 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 21:37:57,994 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label00.c [2020-10-14 21:37:58,056 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b86c0fdda/5bb8365c7fff4945af3c624ab4197408/FLAGee4e9df48 [2020-10-14 21:37:58,644 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 21:37:58,644 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem14_label00.c [2020-10-14 21:37:58,661 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b86c0fdda/5bb8365c7fff4945af3c624ab4197408/FLAGee4e9df48 [2020-10-14 21:37:58,898 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b86c0fdda/5bb8365c7fff4945af3c624ab4197408 [2020-10-14 21:37:58,908 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 21:37:58,910 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 21:37:58,912 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 21:37:58,912 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 21:37:58,916 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 21:37:58,917 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 09:37:58" (1/1) ... [2020-10-14 21:37:58,920 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ad15a05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:37:58, skipping insertion in model container [2020-10-14 21:37:58,921 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 09:37:58" (1/1) ... [2020-10-14 21:37:58,930 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 21:37:58,982 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 21:37:59,612 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 21:37:59,624 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 21:37:59,818 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 21:37:59,835 INFO L208 MainTranslator]: Completed translation [2020-10-14 21:37:59,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:37:59 WrapperNode [2020-10-14 21:37:59,836 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 21:37:59,837 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 21:37:59,837 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 21:37:59,837 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 21:37:59,852 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:37:59" (1/1) ... [2020-10-14 21:37:59,852 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:37:59" (1/1) ... [2020-10-14 21:37:59,873 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:37:59" (1/1) ... [2020-10-14 21:37:59,873 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:37:59" (1/1) ... [2020-10-14 21:37:59,920 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:37:59" (1/1) ... [2020-10-14 21:37:59,939 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:37:59" (1/1) ... [2020-10-14 21:37:59,949 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:37:59" (1/1) ... [2020-10-14 21:37:59,960 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 21:37:59,961 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 21:37:59,961 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 21:37:59,961 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 21:37:59,963 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:37:59" (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 21:38:00,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 21:38:00,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 21:38:00,042 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 21:38:00,042 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 21:38:00,042 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 21:38:00,043 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 21:38:00,043 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 21:38:00,043 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 21:38:00,043 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 21:38:00,043 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 21:38:00,043 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 21:38:01,473 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 21:38:01,474 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 21:38:01,480 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 09:38:01 BoogieIcfgContainer [2020-10-14 21:38:01,481 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 21:38:01,482 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 21:38:01,482 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 21:38:01,485 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 21:38:01,486 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 09:37:58" (1/3) ... [2020-10-14 21:38:01,487 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a88e79b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 09:38:01, skipping insertion in model container [2020-10-14 21:38:01,487 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:37:59" (2/3) ... [2020-10-14 21:38:01,487 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a88e79b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 09:38:01, skipping insertion in model container [2020-10-14 21:38:01,487 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 09:38:01" (3/3) ... [2020-10-14 21:38:01,489 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem14_label00.c [2020-10-14 21:38:01,500 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 21:38:01,508 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 21:38:01,522 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 21:38:01,549 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 21:38:01,550 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 21:38:01,550 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 21:38:01,550 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 21:38:01,550 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 21:38:01,550 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 21:38:01,551 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 21:38:01,551 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 21:38:01,577 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states. [2020-10-14 21:38:01,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-10-14 21:38:01,587 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:38:01,588 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:38:01,589 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:38:01,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:38:01,595 INFO L82 PathProgramCache]: Analyzing trace with hash -837227006, now seen corresponding path program 1 times [2020-10-14 21:38:01,604 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:38:01,605 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [738847150] [2020-10-14 21:38:01,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:38:01,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:38:01,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:38:02,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:38:02,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-10-14 21:38:02,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:38:02,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 397 [2020-10-14 21:38:02,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:38:02,177 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:38:02,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 21:38:02,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 21:38:02,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-14 21:38:02,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 21:38:02,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:38:02,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:38:02,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:38:02,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:38:02,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:38:02,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:38:02,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 21:38:02,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:38:02,344 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:38:02,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:38:02,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:38:02,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 21:38:02,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:38:02,362 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 21:38:02,363 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [738847150] [2020-10-14 21:38:02,365 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 21:38:02,366 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 21:38:02,367 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878462546] [2020-10-14 21:38:02,372 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 21:38:02,373 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:38:02,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 21:38:02,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 21:38:02,391 INFO L87 Difference]: Start difference. First operand 254 states. Second operand 5 states. [2020-10-14 21:38:05,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:38:05,083 INFO L93 Difference]: Finished difference Result 886 states and 1612 transitions. [2020-10-14 21:38:05,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 21:38:05,085 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 59 [2020-10-14 21:38:05,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:38:05,106 INFO L225 Difference]: With dead ends: 886 [2020-10-14 21:38:05,106 INFO L226 Difference]: Without dead ends: 564 [2020-10-14 21:38:05,116 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:38:05,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2020-10-14 21:38:05,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 560. [2020-10-14 21:38:05,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 560 states. [2020-10-14 21:38:05,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 855 transitions. [2020-10-14 21:38:05,257 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 855 transitions. Word has length 59 [2020-10-14 21:38:05,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:38:05,258 INFO L479 AbstractCegarLoop]: Abstraction has 560 states and 855 transitions. [2020-10-14 21:38:05,258 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 21:38:05,259 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 855 transitions. [2020-10-14 21:38:05,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-10-14 21:38:05,273 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:38:05,274 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, 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] [2020-10-14 21:38:05,275 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 21:38:05,275 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:38:05,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:38:05,276 INFO L82 PathProgramCache]: Analyzing trace with hash -1547926855, now seen corresponding path program 1 times [2020-10-14 21:38:05,277 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:38:05,277 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1956524847] [2020-10-14 21:38:05,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:38:05,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:38:05,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:38:05,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:38:06,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:38:06,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:38:06,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-14 21:38:06,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 21:38:06,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1465 [2020-10-14 21:38:06,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:38:06,810 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:38:06,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 21:38:06,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 21:38:06,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-14 21:38:06,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 21:38:06,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:38:06,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:38:06,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:38:06,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:38:06,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:38:06,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:38:06,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 21:38:06,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:38:06,891 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:38:06,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:38:06,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:38:06,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 21:38:06,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:38:06,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:38:06,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:38:06,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:38:07,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:38:07,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 21:38:07,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:38:07,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-10-14 21:38:07,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:38:07,053 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:38:07,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:38:07,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:38:07,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-14 21:38:07,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-10-14 21:38:07,134 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 21:38:07,134 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1956524847] [2020-10-14 21:38:07,135 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 21:38:07,135 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 21:38:07,135 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914351180] [2020-10-14 21:38:07,137 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:38:07,138 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:38:07,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:38:07,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:38:07,138 INFO L87 Difference]: Start difference. First operand 560 states and 855 transitions. Second operand 7 states. [2020-10-14 21:38:09,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:38:09,130 INFO L93 Difference]: Finished difference Result 1706 states and 2668 transitions. [2020-10-14 21:38:09,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 21:38:09,131 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 128 [2020-10-14 21:38:09,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:38:09,140 INFO L225 Difference]: With dead ends: 1706 [2020-10-14 21:38:09,141 INFO L226 Difference]: Without dead ends: 1152 [2020-10-14 21:38:09,143 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 21:38:09,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1152 states. [2020-10-14 21:38:09,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1152 to 1126. [2020-10-14 21:38:09,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1126 states. [2020-10-14 21:38:09,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1126 states to 1126 states and 1539 transitions. [2020-10-14 21:38:09,197 INFO L78 Accepts]: Start accepts. Automaton has 1126 states and 1539 transitions. Word has length 128 [2020-10-14 21:38:09,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:38:09,198 INFO L479 AbstractCegarLoop]: Abstraction has 1126 states and 1539 transitions. [2020-10-14 21:38:09,198 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:38:09,198 INFO L276 IsEmpty]: Start isEmpty. Operand 1126 states and 1539 transitions. [2020-10-14 21:38:09,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-10-14 21:38:09,200 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:38:09,200 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, 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] [2020-10-14 21:38:09,200 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 21:38:09,201 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:38:09,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:38:09,201 INFO L82 PathProgramCache]: Analyzing trace with hash -252421119, now seen corresponding path program 1 times [2020-10-14 21:38:09,201 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:38:09,202 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [880609514] [2020-10-14 21:38:09,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:38:09,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:38:09,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:38:09,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:38:09,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:38:10,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:38:10,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-14 21:38:10,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 21:38:10,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1365 [2020-10-14 21:38:10,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:38:10,599 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:38:10,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 21:38:10,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 21:38:10,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-14 21:38:10,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:38:10,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:38:10,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:38:10,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:38:10,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:38:10,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:38:10,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:38:10,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 21:38:10,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:38:10,689 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:38:10,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:38:10,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:38:10,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 21:38:10,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 21:38:10,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:38:10,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:38:10,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:38:10,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:38:10,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 21:38:10,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:38:10,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-10-14 21:38:10,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:38:10,848 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:38:10,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:38:10,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:38:10,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-14 21:38:10,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:38:11,029 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 21:38:11,029 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [880609514] [2020-10-14 21:38:11,030 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 21:38:11,030 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 21:38:11,030 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11137541] [2020-10-14 21:38:11,033 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:38:11,034 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:38:11,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:38:11,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:38:11,036 INFO L87 Difference]: Start difference. First operand 1126 states and 1539 transitions. Second operand 7 states. [2020-10-14 21:38:12,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:38:12,604 INFO L93 Difference]: Finished difference Result 2456 states and 3332 transitions. [2020-10-14 21:38:12,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 21:38:12,604 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 132 [2020-10-14 21:38:12,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:38:12,613 INFO L225 Difference]: With dead ends: 2456 [2020-10-14 21:38:12,614 INFO L226 Difference]: Without dead ends: 1336 [2020-10-14 21:38:12,617 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 1 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 21:38:12,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1336 states. [2020-10-14 21:38:12,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1336 to 1314. [2020-10-14 21:38:12,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1314 states. [2020-10-14 21:38:12,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1314 states to 1314 states and 1749 transitions. [2020-10-14 21:38:12,692 INFO L78 Accepts]: Start accepts. Automaton has 1314 states and 1749 transitions. Word has length 132 [2020-10-14 21:38:12,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:38:12,694 INFO L479 AbstractCegarLoop]: Abstraction has 1314 states and 1749 transitions. [2020-10-14 21:38:12,694 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:38:12,694 INFO L276 IsEmpty]: Start isEmpty. Operand 1314 states and 1749 transitions. [2020-10-14 21:38:12,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-10-14 21:38:12,697 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:38:12,701 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:38:12,701 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 21:38:12,702 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:38:12,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:38:12,702 INFO L82 PathProgramCache]: Analyzing trace with hash 1085595290, now seen corresponding path program 1 times [2020-10-14 21:38:12,702 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:38:12,703 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [947162566] [2020-10-14 21:38:12,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:38:12,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:38:12,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:38:12,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:38:13,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:38:13,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-14 21:38:13,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:38:13,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 360 [2020-10-14 21:38:13,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:38:13,128 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:38:13,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:38:13,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-10-14 21:38:13,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-14 21:38:13,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:38:13,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:38:13,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:38:13,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:38:13,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:38:13,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:38:13,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:38:13,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 21:38:13,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:38:13,200 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:38:13,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:38:13,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:38:13,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:38:13,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:38:13,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:38:13,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:38:13,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:38:13,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:38:13,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-14 21:38:13,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:38:13,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-14 21:38:13,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:38:13,280 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:38:13,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:38:13,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:38:13,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-14 21:38:13,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:38:13,328 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 51 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 21:38:13,329 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [947162566] [2020-10-14 21:38:13,329 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:38:13,330 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 21:38:13,330 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990957600] [2020-10-14 21:38:13,331 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 21:38:13,331 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:38:13,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 21:38:13,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 21:38:13,332 INFO L87 Difference]: Start difference. First operand 1314 states and 1749 transitions. Second operand 5 states. [2020-10-14 21:38:14,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:38:14,981 INFO L93 Difference]: Finished difference Result 3188 states and 4460 transitions. [2020-10-14 21:38:14,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 21:38:14,982 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 143 [2020-10-14 21:38:14,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:38:14,998 INFO L225 Difference]: With dead ends: 3188 [2020-10-14 21:38:14,998 INFO L226 Difference]: Without dead ends: 2062 [2020-10-14 21:38:15,003 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 21:38:15,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2062 states. [2020-10-14 21:38:15,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2062 to 1870. [2020-10-14 21:38:15,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1870 states. [2020-10-14 21:38:15,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1870 states to 1870 states and 2431 transitions. [2020-10-14 21:38:15,079 INFO L78 Accepts]: Start accepts. Automaton has 1870 states and 2431 transitions. Word has length 143 [2020-10-14 21:38:15,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:38:15,080 INFO L479 AbstractCegarLoop]: Abstraction has 1870 states and 2431 transitions. [2020-10-14 21:38:15,081 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 21:38:15,082 INFO L276 IsEmpty]: Start isEmpty. Operand 1870 states and 2431 transitions. [2020-10-14 21:38:15,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2020-10-14 21:38:15,088 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:38:15,089 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:38:15,089 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 21:38:15,089 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:38:15,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:38:15,090 INFO L82 PathProgramCache]: Analyzing trace with hash 485666717, now seen corresponding path program 1 times [2020-10-14 21:38:15,090 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:38:15,090 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [994601714] [2020-10-14 21:38:15,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:38:15,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:38:15,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:38:15,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:38:15,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:38:15,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:38:16,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:38:18,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:38:18,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 238 [2020-10-14 21:38:18,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 21:38:18,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3033 [2020-10-14 21:38:18,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:38:18,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:38:18,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 21:38:18,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 21:38:18,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 175 [2020-10-14 21:38:18,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:38:18,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:38:18,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:38:18,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:38:18,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:38:18,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:38:18,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:38:18,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 21:38:18,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:38:18,254 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:38:18,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:38:18,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:38:18,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 21:38:18,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:38:18,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:38:18,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:38:18,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:38:18,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:38:18,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-14 21:38:18,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:38:18,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-14 21:38:18,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:38:18,368 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:38:18,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:38:18,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:38:18,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-14 21:38:18,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 21:38:18,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-14 21:38:18,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:38:18,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:38:18,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:38:18,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 21:38:18,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:38:18,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-14 21:38:18,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:38:18,543 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:38:18,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:38:18,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:38:18,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-14 21:38:18,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:38:18,820 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 105 proven. 78 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-14 21:38:18,820 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [994601714] [2020-10-14 21:38:18,820 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:38:18,821 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 21:38:18,821 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802664357] [2020-10-14 21:38:18,821 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 21:38:18,822 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:38:18,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 21:38:18,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-14 21:38:18,823 INFO L87 Difference]: Start difference. First operand 1870 states and 2431 transitions. Second operand 9 states. [2020-10-14 21:38:20,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:38:20,945 INFO L93 Difference]: Finished difference Result 3778 states and 4961 transitions. [2020-10-14 21:38:20,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-14 21:38:20,945 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 226 [2020-10-14 21:38:20,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:38:20,959 INFO L225 Difference]: With dead ends: 3778 [2020-10-14 21:38:20,959 INFO L226 Difference]: Without dead ends: 2096 [2020-10-14 21:38:20,964 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=77, Invalid=195, Unknown=0, NotChecked=0, Total=272 [2020-10-14 21:38:20,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2096 states. [2020-10-14 21:38:21,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2096 to 2060. [2020-10-14 21:38:21,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2060 states. [2020-10-14 21:38:21,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2060 states to 2060 states and 2619 transitions. [2020-10-14 21:38:21,026 INFO L78 Accepts]: Start accepts. Automaton has 2060 states and 2619 transitions. Word has length 226 [2020-10-14 21:38:21,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:38:21,027 INFO L479 AbstractCegarLoop]: Abstraction has 2060 states and 2619 transitions. [2020-10-14 21:38:21,027 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 21:38:21,027 INFO L276 IsEmpty]: Start isEmpty. Operand 2060 states and 2619 transitions. [2020-10-14 21:38:21,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2020-10-14 21:38:21,035 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:38:21,035 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:38:21,036 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 21:38:21,036 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:38:21,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:38:21,036 INFO L82 PathProgramCache]: Analyzing trace with hash 1365560285, now seen corresponding path program 1 times [2020-10-14 21:38:21,036 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:38:21,037 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1497590690] [2020-10-14 21:38:21,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:38:21,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:38:21,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:38:21,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:38:21,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:38:23,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:38:23,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:38:26,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:38:26,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 338 [2020-10-14 21:38:26,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 21:38:26,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-14 21:38:26,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:38:26,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:38:26,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 21:38:26,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 21:38:26,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-10-14 21:38:26,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:38:26,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:38:26,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:38:26,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:38:26,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:38:26,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:38:26,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:38:26,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 21:38:26,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:38:26,172 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:38:26,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:38:26,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:38:26,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 21:38:26,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:38:26,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:38:26,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:38:26,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:38:26,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:38:26,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 21:38:26,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:38:26,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 159 [2020-10-14 21:38:26,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:38:26,370 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:38:26,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:38:26,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:38:26,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 21:38:26,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:38:26,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-14 21:38:26,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:38:26,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:38:26,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:38:26,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 21:38:26,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:38:26,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 21:38:26,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:38:26,512 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:38:26,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:38:26,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-10-14 21:38:26,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:38:26,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:38:26,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2020-10-14 21:38:26,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:38:26,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:38:26,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:38:26,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 21:38:26,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:38:26,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-14 21:38:26,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:38:26,594 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:38:26,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:38:26,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-14 21:38:26,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:38:26,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:38:26,869 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 156 proven. 146 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2020-10-14 21:38:26,870 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1497590690] [2020-10-14 21:38:26,871 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:38:26,871 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:38:26,871 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955894662] [2020-10-14 21:38:26,872 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:38:26,872 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:38:26,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:38:26,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:38:26,872 INFO L87 Difference]: Start difference. First operand 2060 states and 2619 transitions. Second operand 7 states. [2020-10-14 21:38:28,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:38:28,837 INFO L93 Difference]: Finished difference Result 4696 states and 6202 transitions. [2020-10-14 21:38:28,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 21:38:28,840 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 324 [2020-10-14 21:38:28,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:38:28,859 INFO L225 Difference]: With dead ends: 4696 [2020-10-14 21:38:28,860 INFO L226 Difference]: Without dead ends: 2824 [2020-10-14 21:38:28,874 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2020-10-14 21:38:28,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2824 states. [2020-10-14 21:38:28,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2824 to 2808. [2020-10-14 21:38:28,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2808 states. [2020-10-14 21:38:28,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2808 states to 2808 states and 3541 transitions. [2020-10-14 21:38:28,956 INFO L78 Accepts]: Start accepts. Automaton has 2808 states and 3541 transitions. Word has length 324 [2020-10-14 21:38:28,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:38:28,957 INFO L479 AbstractCegarLoop]: Abstraction has 2808 states and 3541 transitions. [2020-10-14 21:38:28,957 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:38:28,957 INFO L276 IsEmpty]: Start isEmpty. Operand 2808 states and 3541 transitions. [2020-10-14 21:38:28,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 364 [2020-10-14 21:38:28,964 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:38:28,965 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:38:28,965 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 21:38:28,966 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:38:28,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:38:28,966 INFO L82 PathProgramCache]: Analyzing trace with hash -1697986318, now seen corresponding path program 1 times [2020-10-14 21:38:28,966 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:38:28,967 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [682862770] [2020-10-14 21:38:28,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:38:29,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:38:29,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:38:29,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:38:29,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:38:29,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:38:30,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:38:31,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:38:33,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:38:33,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:38:33,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 377 [2020-10-14 21:38:33,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-14 21:38:33,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4704 [2020-10-14 21:38:33,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:38:33,719 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:38:33,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 21:38:33,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-10-14 21:38:33,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 225 [2020-10-14 21:38:33,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:38:33,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:38:33,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:38:33,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:38:33,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:38:33,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:38:33,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:38:33,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 21:38:33,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:38:33,799 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:38:33,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:38:33,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:38:33,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:38:33,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 21:38:33,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:38:33,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:38:33,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:38:33,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:38:33,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-14 21:38:33,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:38:33,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-14 21:38:33,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:38:33,872 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:38:33,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:38:33,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:38:33,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-14 21:38:33,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:38:33,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-14 21:38:33,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:38:33,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:38:34,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:38:34,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:38:34,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-14 21:38:34,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:38:34,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 239 [2020-10-14 21:38:34,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:38:34,155 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:38:34,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:38:34,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:38:34,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-10-14 21:38:34,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:38:34,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2020-10-14 21:38:34,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:38:34,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:38:34,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:38:34,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-14 21:38:34,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:38:34,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-14 21:38:34,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:38:34,337 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:38:34,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:38:34,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:38:34,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-14 21:38:34,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:38:34,484 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 314 proven. 77 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-14 21:38:34,484 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [682862770] [2020-10-14 21:38:34,485 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:38:34,485 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 21:38:34,485 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502035774] [2020-10-14 21:38:34,486 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 21:38:34,486 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:38:34,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 21:38:34,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-14 21:38:34,487 INFO L87 Difference]: Start difference. First operand 2808 states and 3541 transitions. Second operand 8 states. [2020-10-14 21:38:36,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:38:36,582 INFO L93 Difference]: Finished difference Result 5664 states and 7438 transitions. [2020-10-14 21:38:36,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 21:38:36,583 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 363 [2020-10-14 21:38:36,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:38:36,601 INFO L225 Difference]: With dead ends: 5664 [2020-10-14 21:38:36,601 INFO L226 Difference]: Without dead ends: 3028 [2020-10-14 21:38:36,609 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-10-14 21:38:36,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3028 states. [2020-10-14 21:38:36,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3028 to 2626. [2020-10-14 21:38:36,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2626 states. [2020-10-14 21:38:36,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2626 states to 2626 states and 3039 transitions. [2020-10-14 21:38:36,677 INFO L78 Accepts]: Start accepts. Automaton has 2626 states and 3039 transitions. Word has length 363 [2020-10-14 21:38:36,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:38:36,678 INFO L479 AbstractCegarLoop]: Abstraction has 2626 states and 3039 transitions. [2020-10-14 21:38:36,678 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 21:38:36,678 INFO L276 IsEmpty]: Start isEmpty. Operand 2626 states and 3039 transitions. [2020-10-14 21:38:36,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 446 [2020-10-14 21:38:36,687 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:38:36,687 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 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] [2020-10-14 21:38:36,688 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 21:38:36,688 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:38:36,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:38:36,688 INFO L82 PathProgramCache]: Analyzing trace with hash 1652826466, now seen corresponding path program 1 times [2020-10-14 21:38:36,689 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:38:36,689 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [513088910] [2020-10-14 21:38:36,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:38:36,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:38:36,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:38:36,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:38:36,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:38:37,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:38:38,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:38:40,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:38:41,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:38:41,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 461 [2020-10-14 21:38:41,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 21:38:41,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5038 [2020-10-14 21:38:41,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:38:41,800 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:38:41,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 21:38:41,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 231 [2020-10-14 21:38:41,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 172 [2020-10-14 21:38:41,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:38:41,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:38:41,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:38:41,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:38:41,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:38:41,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:38:41,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:38:41,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 21:38:41,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:38:41,902 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:38:41,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:38:41,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:38:41,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:38:41,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:38:41,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:38:41,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:38:41,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:38:41,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:38:41,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 21:38:41,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:38:41,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 21:38:41,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:38:41,944 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:38:41,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:38:41,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:38:41,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:38:41,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:38:41,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 21:38:41,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:38:41,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:38:42,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:38:42,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 21:38:42,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:38:42,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-14 21:38:42,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:38:42,047 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:38:42,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:38:42,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:38:42,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-14 21:38:42,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:38:42,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-14 21:38:42,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:38:42,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:38:42,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:38:42,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:38:42,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-14 21:38:42,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:38:42,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-14 21:38:42,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:38:42,153 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:38:42,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:38:42,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:38:42,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-14 21:38:42,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:38:42,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2020-10-14 21:38:42,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:38:42,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:38:42,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:38:42,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 21:38:42,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:38:42,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-14 21:38:42,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:38:42,234 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:38:42,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:38:42,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:38:42,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-14 21:38:42,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:38:42,396 INFO L134 CoverageAnalysis]: Checked inductivity of 734 backedges. 461 proven. 4 refuted. 0 times theorem prover too weak. 269 trivial. 0 not checked. [2020-10-14 21:38:42,396 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [513088910] [2020-10-14 21:38:42,397 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:38:42,397 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 21:38:42,397 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057412944] [2020-10-14 21:38:42,398 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 21:38:42,398 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:38:42,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 21:38:42,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 21:38:42,399 INFO L87 Difference]: Start difference. First operand 2626 states and 3039 transitions. Second operand 8 states. [2020-10-14 21:38:44,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:38:44,687 INFO L93 Difference]: Finished difference Result 6560 states and 7993 transitions. [2020-10-14 21:38:44,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-14 21:38:44,687 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 445 [2020-10-14 21:38:44,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:38:44,706 INFO L225 Difference]: With dead ends: 6560 [2020-10-14 21:38:44,706 INFO L226 Difference]: Without dead ends: 4116 [2020-10-14 21:38:44,712 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-10-14 21:38:44,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4116 states. [2020-10-14 21:38:44,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4116 to 3744. [2020-10-14 21:38:44,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3744 states. [2020-10-14 21:38:44,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3744 states to 3744 states and 4189 transitions. [2020-10-14 21:38:44,805 INFO L78 Accepts]: Start accepts. Automaton has 3744 states and 4189 transitions. Word has length 445 [2020-10-14 21:38:44,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:38:44,806 INFO L479 AbstractCegarLoop]: Abstraction has 3744 states and 4189 transitions. [2020-10-14 21:38:44,806 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 21:38:44,806 INFO L276 IsEmpty]: Start isEmpty. Operand 3744 states and 4189 transitions. [2020-10-14 21:38:44,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 678 [2020-10-14 21:38:44,823 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:38:44,824 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 3, 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 21:38:44,824 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 21:38:44,824 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:38:44,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:38:44,825 INFO L82 PathProgramCache]: Analyzing trace with hash -623090010, now seen corresponding path program 1 times [2020-10-14 21:38:44,825 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:38:44,826 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [176085695] [2020-10-14 21:38:44,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:38:44,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:38:44,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:38:45,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:38:45,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:38:45,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:38:49,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:38:49,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 697 [2020-10-14 21:38:49,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 21:38:49,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-14 21:38:49,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:38:49,921 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:38:49,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 21:38:49,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 231 [2020-10-14 21:38:49,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 248 [2020-10-14 21:38:49,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:38:50,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:38:50,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:38:50,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:38:50,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:38:50,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:38:50,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:38:50,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 21:38:50,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:38:50,054 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:38:50,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:38:50,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:38:50,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:38:50,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:38:50,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:38:50,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:38:50,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:38:50,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:38:50,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 21:38:50,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:38:50,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 21:38:50,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:38:50,087 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:38:50,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:38:50,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:38:50,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:38:50,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:38:50,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 21:38:50,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:38:50,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:38:50,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:38:50,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 21:38:50,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:38:50,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-14 21:38:50,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:38:50,167 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:38:50,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:38:50,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:38:50,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-14 21:38:50,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:38:50,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-14 21:38:50,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:38:50,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:38:50,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:38:50,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:38:50,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 21:38:50,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:38:50,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-14 21:38:50,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:38:50,273 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:38:50,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:38:50,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:38:50,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-14 21:38:50,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:38:50,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2020-10-14 21:38:50,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:38:50,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:38:50,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:38:50,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-14 21:38:50,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:38:50,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-14 21:38:50,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:38:50,409 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:38:50,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:38:50,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:38:50,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-10-14 21:38:50,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:38:50,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-14 21:38:50,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:38:50,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:38:50,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:38:50,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 21:38:50,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:38:50,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 21:38:50,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:38:50,506 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:38:50,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:38:50,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-10-14 21:38:50,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:38:50,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:38:50,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 543 [2020-10-14 21:38:50,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:38:50,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:38:50,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:38:50,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 21:38:50,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:38:50,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 21:38:50,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:38:50,541 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:38:50,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:38:50,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-14 21:38:50,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:38:50,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:38:50,826 INFO L134 CoverageAnalysis]: Checked inductivity of 1666 backedges. 769 proven. 302 refuted. 0 times theorem prover too weak. 595 trivial. 0 not checked. [2020-10-14 21:38:50,827 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [176085695] [2020-10-14 21:38:50,827 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:38:50,827 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 21:38:50,827 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127355091] [2020-10-14 21:38:50,828 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 21:38:50,828 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:38:50,829 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 21:38:50,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 21:38:50,829 INFO L87 Difference]: Start difference. First operand 3744 states and 4189 transitions. Second operand 8 states. [2020-10-14 21:38:53,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:38:53,189 INFO L93 Difference]: Finished difference Result 7310 states and 8213 transitions. [2020-10-14 21:38:53,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 21:38:53,189 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 677 [2020-10-14 21:38:53,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:38:53,208 INFO L225 Difference]: With dead ends: 7310 [2020-10-14 21:38:53,209 INFO L226 Difference]: Without dead ends: 3938 [2020-10-14 21:38:53,219 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-10-14 21:38:53,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3938 states. [2020-10-14 21:38:53,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3938 to 3926. [2020-10-14 21:38:53,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3926 states. [2020-10-14 21:38:53,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3926 states to 3926 states and 4373 transitions. [2020-10-14 21:38:53,323 INFO L78 Accepts]: Start accepts. Automaton has 3926 states and 4373 transitions. Word has length 677 [2020-10-14 21:38:53,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:38:53,323 INFO L479 AbstractCegarLoop]: Abstraction has 3926 states and 4373 transitions. [2020-10-14 21:38:53,324 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 21:38:53,324 INFO L276 IsEmpty]: Start isEmpty. Operand 3926 states and 4373 transitions. [2020-10-14 21:38:53,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 711 [2020-10-14 21:38:53,348 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:38:53,349 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 3, 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] [2020-10-14 21:38:53,349 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 21:38:53,349 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:38:53,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:38:53,350 INFO L82 PathProgramCache]: Analyzing trace with hash -1793285307, now seen corresponding path program 1 times [2020-10-14 21:38:53,350 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:38:53,351 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2100309512] [2020-10-14 21:38:53,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:38:53,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:38:53,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:38:53,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:38:53,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:38:56,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:38:58,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:38:58,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 730 [2020-10-14 21:38:58,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 21:38:58,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-10-14 21:38:58,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:38:58,528 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:38:58,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:38:58,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 586 [2020-10-14 21:38:58,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-14 21:38:58,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:38:58,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:38:58,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:38:58,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:38:58,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:38:58,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:38:58,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:38:58,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:38:58,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:38:58,608 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:38:58,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:38:58,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:38:58,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:38:58,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:38:58,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:38:58,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:38:58,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:38:58,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:38:58,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 21:38:58,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:38:58,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 21:38:58,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:38:58,638 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:38:58,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:38:58,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:38:58,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:38:58,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:38:58,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 21:38:58,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:38:58,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:38:58,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:38:58,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 21:38:58,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:38:58,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 21:38:58,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:38:58,671 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:38:58,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:38:58,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:38:58,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:38:58,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:38:58,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-14 21:38:58,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:38:58,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:38:58,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:38:58,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-14 21:38:58,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:38:58,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 21:38:58,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:38:58,713 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:38:58,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:38:58,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:38:58,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:38:58,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:38:58,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-14 21:38:58,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:38:58,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:38:58,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:38:58,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-14 21:38:58,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:38:58,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 21:38:58,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:38:58,756 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:38:58,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:38:58,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:38:58,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:38:58,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:38:58,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-14 21:38:58,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:38:58,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:38:58,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:38:58,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 21:38:58,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:38:58,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 21:38:58,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:38:58,811 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:38:58,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:38:58,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:38:58,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-14 21:38:58,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:38:58,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 576 [2020-10-14 21:38:58,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:38:58,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:38:58,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:38:58,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 21:38:58,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:38:58,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-14 21:38:58,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:38:58,890 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:38:58,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:38:58,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:38:58,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-14 21:38:58,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:38:59,163 INFO L134 CoverageAnalysis]: Checked inductivity of 1673 backedges. 722 proven. 2 refuted. 0 times theorem prover too weak. 949 trivial. 0 not checked. [2020-10-14 21:38:59,163 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2100309512] [2020-10-14 21:38:59,164 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:38:59,164 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:38:59,164 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805043121] [2020-10-14 21:38:59,165 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:38:59,165 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:38:59,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:38:59,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:38:59,166 INFO L87 Difference]: Start difference. First operand 3926 states and 4373 transitions. Second operand 7 states. [2020-10-14 21:39:00,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:39:00,752 INFO L93 Difference]: Finished difference Result 7686 states and 8616 transitions. [2020-10-14 21:39:00,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 21:39:00,753 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 710 [2020-10-14 21:39:00,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:39:00,772 INFO L225 Difference]: With dead ends: 7686 [2020-10-14 21:39:00,772 INFO L226 Difference]: Without dead ends: 3944 [2020-10-14 21:39:00,781 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 21:39:00,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3944 states. [2020-10-14 21:39:00,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3944 to 3734. [2020-10-14 21:39:00,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3734 states. [2020-10-14 21:39:00,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3734 states to 3734 states and 4126 transitions. [2020-10-14 21:39:00,885 INFO L78 Accepts]: Start accepts. Automaton has 3734 states and 4126 transitions. Word has length 710 [2020-10-14 21:39:00,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:39:00,886 INFO L479 AbstractCegarLoop]: Abstraction has 3734 states and 4126 transitions. [2020-10-14 21:39:00,886 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:39:00,886 INFO L276 IsEmpty]: Start isEmpty. Operand 3734 states and 4126 transitions. [2020-10-14 21:39:00,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 814 [2020-10-14 21:39:00,899 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:39:00,900 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 21:39:00,900 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 21:39:00,900 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:39:00,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:39:00,901 INFO L82 PathProgramCache]: Analyzing trace with hash -1632663178, now seen corresponding path program 1 times [2020-10-14 21:39:00,901 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:39:00,901 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [933969020] [2020-10-14 21:39:00,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:39:01,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:01,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:01,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:01,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:02,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:06,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:06,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 833 [2020-10-14 21:39:06,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 21:39:06,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5045 [2020-10-14 21:39:06,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:06,090 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:06,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:39:06,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 511 [2020-10-14 21:39:06,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 182 [2020-10-14 21:39:06,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:39:06,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:39:06,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:06,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:06,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:06,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:39:06,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:39:06,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 21:39:06,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:06,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:06,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:39:06,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:39:06,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:39:06,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:39:06,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:39:06,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:06,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:06,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:06,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 21:39:06,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:39:06,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 21:39:06,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:06,200 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:06,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:39:06,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:39:06,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:39:06,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:39:06,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 21:39:06,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:06,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:06,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:06,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 21:39:06,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:39:06,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 21:39:06,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:06,239 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:06,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:39:06,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:39:06,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:39:06,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:39:06,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-14 21:39:06,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:06,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:06,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:06,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-14 21:39:06,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:39:06,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 21:39:06,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:06,290 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:06,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:39:06,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:39:06,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:39:06,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:39:06,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-14 21:39:06,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:06,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:06,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:06,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-14 21:39:06,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:39:06,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-14 21:39:06,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:06,417 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:06,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:39:06,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:39:06,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-10-14 21:39:06,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:39:06,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-14 21:39:06,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:06,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:06,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:06,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-14 21:39:06,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:39:06,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-10-14 21:39:06,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:06,596 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:06,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:39:06,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:39:06,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-14 21:39:06,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:39:06,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 682 [2020-10-14 21:39:06,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:06,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:06,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:06,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-14 21:39:06,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:39:06,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 21:39:06,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:06,684 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:06,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:39:06,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-10-14 21:39:06,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:39:06,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:39:07,027 INFO L134 CoverageAnalysis]: Checked inductivity of 1871 backedges. 826 proven. 79 refuted. 0 times theorem prover too weak. 966 trivial. 0 not checked. [2020-10-14 21:39:07,027 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [933969020] [2020-10-14 21:39:07,027 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:39:07,028 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:39:07,028 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472495193] [2020-10-14 21:39:07,028 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:39:07,028 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:39:07,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:39:07,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:39:07,029 INFO L87 Difference]: Start difference. First operand 3734 states and 4126 transitions. Second operand 7 states. [2020-10-14 21:39:08,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:39:08,342 INFO L93 Difference]: Finished difference Result 8212 states and 9284 transitions. [2020-10-14 21:39:08,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 21:39:08,343 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 813 [2020-10-14 21:39:08,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:39:08,368 INFO L225 Difference]: With dead ends: 8212 [2020-10-14 21:39:08,368 INFO L226 Difference]: Without dead ends: 4850 [2020-10-14 21:39:08,377 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 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 21:39:08,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4850 states. [2020-10-14 21:39:08,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4850 to 4658. [2020-10-14 21:39:08,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4658 states. [2020-10-14 21:39:08,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4658 states to 4658 states and 5277 transitions. [2020-10-14 21:39:08,457 INFO L78 Accepts]: Start accepts. Automaton has 4658 states and 5277 transitions. Word has length 813 [2020-10-14 21:39:08,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:39:08,459 INFO L479 AbstractCegarLoop]: Abstraction has 4658 states and 5277 transitions. [2020-10-14 21:39:08,459 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:39:08,459 INFO L276 IsEmpty]: Start isEmpty. Operand 4658 states and 5277 transitions. [2020-10-14 21:39:08,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 890 [2020-10-14 21:39:08,470 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:39:08,471 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:39:08,471 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 21:39:08,471 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:39:08,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:39:08,472 INFO L82 PathProgramCache]: Analyzing trace with hash -203337234, now seen corresponding path program 1 times [2020-10-14 21:39:08,472 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:39:08,472 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1369834377] [2020-10-14 21:39:08,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:39:08,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:08,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:09,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:09,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:10,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:13,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:13,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 911 [2020-10-14 21:39:13,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 21:39:13,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-14 21:39:13,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:13,604 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:13,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:39:13,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 770 [2020-10-14 21:39:13,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-14 21:39:13,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:39:13,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:39:13,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:13,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:13,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:13,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:39:13,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:39:13,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 21:39:13,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:13,719 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:13,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:39:13,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:39:13,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:39:13,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:39:13,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:39:13,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:13,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:13,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:13,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 21:39:13,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:39:13,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 21:39:13,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:13,751 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:13,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:39:13,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:39:13,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:39:13,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:39:13,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 21:39:13,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:13,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:13,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:13,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 21:39:13,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:39:13,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 21:39:13,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:13,783 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:13,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:39:13,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:39:13,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:39:13,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:39:13,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-14 21:39:13,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:13,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:13,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:13,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-14 21:39:13,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:39:13,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 21:39:13,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:13,815 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:13,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:39:13,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:39:13,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:39:13,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:39:13,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-14 21:39:13,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:13,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:13,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:13,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-14 21:39:13,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:39:13,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 21:39:13,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:13,859 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:13,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:39:13,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:39:13,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:39:13,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:39:13,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-14 21:39:13,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:13,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:13,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:13,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 21:39:13,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:39:13,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 21:39:13,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:13,898 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:13,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:39:13,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:39:13,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:39:13,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:39:13,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 579 [2020-10-14 21:39:13,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:13,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:14,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:14,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-14 21:39:14,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:39:14,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-14 21:39:14,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:14,017 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:14,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:39:14,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:39:14,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 174 [2020-10-14 21:39:14,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:39:14,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 758 [2020-10-14 21:39:14,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:14,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:14,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:14,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-14 21:39:14,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:39:14,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 21:39:14,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:14,184 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:14,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:39:14,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:39:14,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-14 21:39:14,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:39:14,523 INFO L134 CoverageAnalysis]: Checked inductivity of 2379 backedges. 847 proven. 2 refuted. 0 times theorem prover too weak. 1530 trivial. 0 not checked. [2020-10-14 21:39:14,523 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1369834377] [2020-10-14 21:39:14,523 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:39:14,524 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:39:14,524 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950701940] [2020-10-14 21:39:14,525 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:39:14,525 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:39:14,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:39:14,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:39:14,525 INFO L87 Difference]: Start difference. First operand 4658 states and 5277 transitions. Second operand 7 states. [2020-10-14 21:39:15,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:39:15,843 INFO L93 Difference]: Finished difference Result 10418 states and 12076 transitions. [2020-10-14 21:39:15,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 21:39:15,844 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 889 [2020-10-14 21:39:15,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:39:15,868 INFO L225 Difference]: With dead ends: 10418 [2020-10-14 21:39:15,868 INFO L226 Difference]: Without dead ends: 6132 [2020-10-14 21:39:15,881 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 21:39:15,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6132 states. [2020-10-14 21:39:15,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6132 to 5942. [2020-10-14 21:39:15,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5942 states. [2020-10-14 21:39:15,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5942 states to 5942 states and 6864 transitions. [2020-10-14 21:39:15,980 INFO L78 Accepts]: Start accepts. Automaton has 5942 states and 6864 transitions. Word has length 889 [2020-10-14 21:39:15,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:39:15,981 INFO L479 AbstractCegarLoop]: Abstraction has 5942 states and 6864 transitions. [2020-10-14 21:39:15,981 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:39:15,981 INFO L276 IsEmpty]: Start isEmpty. Operand 5942 states and 6864 transitions. [2020-10-14 21:39:15,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 911 [2020-10-14 21:39:15,994 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:39:15,995 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:39:15,995 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 21:39:15,995 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:39:15,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:39:15,996 INFO L82 PathProgramCache]: Analyzing trace with hash 171833949, now seen corresponding path program 1 times [2020-10-14 21:39:15,996 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:39:15,996 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1700989667] [2020-10-14 21:39:15,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:39:16,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:16,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:16,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:16,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:18,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:21,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:21,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 932 [2020-10-14 21:39:21,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 21:39:21,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5120 [2020-10-14 21:39:21,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:21,295 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:21,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:39:21,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 350 [2020-10-14 21:39:21,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-14 21:39:21,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:39:21,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:39:21,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:21,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:21,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:21,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:39:21,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:39:21,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:39:21,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:21,373 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:21,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:39:21,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:39:21,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:39:21,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:39:21,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:39:21,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:21,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:21,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:21,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 21:39:21,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:39:21,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 21:39:21,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:21,403 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:21,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:39:21,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:39:21,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:39:21,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:39:21,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 21:39:21,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:21,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:21,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:21,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 21:39:21,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:39:21,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 21:39:21,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:21,439 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:21,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:39:21,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:39:21,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:39:21,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:39:21,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-14 21:39:21,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:21,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:21,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:21,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-14 21:39:21,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:39:21,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-14 21:39:21,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:21,510 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:21,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:39:21,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:39:21,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-14 21:39:21,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:39:21,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-14 21:39:21,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:21,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:21,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:21,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-14 21:39:21,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:39:21,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-10-14 21:39:21,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:21,679 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:21,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:39:21,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:39:21,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 178 [2020-10-14 21:39:21,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:39:21,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 521 [2020-10-14 21:39:21,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:21,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:21,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:21,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 21:39:21,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:39:21,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 21:39:21,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:21,798 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:21,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:39:21,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-14 21:39:21,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:39:21,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:39:21,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 597 [2020-10-14 21:39:21,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:21,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:21,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:21,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-14 21:39:21,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:39:21,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-14 21:39:21,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:21,870 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:21,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:39:21,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-14 21:39:21,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:39:21,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:39:21,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 776 [2020-10-14 21:39:21,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:21,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:21,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:21,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 21:39:21,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:39:21,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 21:39:21,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:21,929 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:21,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:39:21,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-14 21:39:21,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:39:21,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:39:22,464 INFO L134 CoverageAnalysis]: Checked inductivity of 2412 backedges. 737 proven. 329 refuted. 0 times theorem prover too weak. 1346 trivial. 0 not checked. [2020-10-14 21:39:22,464 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1700989667] [2020-10-14 21:39:22,464 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:39:22,465 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:39:22,465 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562594590] [2020-10-14 21:39:22,465 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:39:22,466 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:39:22,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:39:22,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:39:22,466 INFO L87 Difference]: Start difference. First operand 5942 states and 6864 transitions. Second operand 7 states. [2020-10-14 21:39:23,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:39:23,927 INFO L93 Difference]: Finished difference Result 12802 states and 14955 transitions. [2020-10-14 21:39:23,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 21:39:23,928 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 910 [2020-10-14 21:39:23,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:39:23,950 INFO L225 Difference]: With dead ends: 12802 [2020-10-14 21:39:23,950 INFO L226 Difference]: Without dead ends: 7044 [2020-10-14 21:39:23,969 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-10-14 21:39:23,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7044 states. [2020-10-14 21:39:24,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7044 to 6858. [2020-10-14 21:39:24,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6858 states. [2020-10-14 21:39:24,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6858 states to 6858 states and 7840 transitions. [2020-10-14 21:39:24,092 INFO L78 Accepts]: Start accepts. Automaton has 6858 states and 7840 transitions. Word has length 910 [2020-10-14 21:39:24,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:39:24,093 INFO L479 AbstractCegarLoop]: Abstraction has 6858 states and 7840 transitions. [2020-10-14 21:39:24,094 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:39:24,094 INFO L276 IsEmpty]: Start isEmpty. Operand 6858 states and 7840 transitions. [2020-10-14 21:39:24,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 950 [2020-10-14 21:39:24,118 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:39:24,119 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:39:24,119 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 21:39:24,119 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:39:24,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:39:24,120 INFO L82 PathProgramCache]: Analyzing trace with hash 1793820682, now seen corresponding path program 1 times [2020-10-14 21:39:24,120 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:39:24,121 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [185276699] [2020-10-14 21:39:24,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:39:24,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:24,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:24,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:24,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:25,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:26,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:29,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:29,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 971 [2020-10-14 21:39:29,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 21:39:29,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-14 21:39:29,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:29,300 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:29,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:39:29,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 646 [2020-10-14 21:39:29,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 182 [2020-10-14 21:39:29,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:39:29,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:39:29,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:29,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:29,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:29,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:39:29,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:39:29,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:39:29,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:29,395 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:29,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:39:29,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:39:29,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:39:29,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:39:29,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:39:29,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:29,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:29,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:29,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 21:39:29,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:39:29,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 21:39:29,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:29,429 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:29,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:39:29,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:39:29,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:39:29,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:39:29,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 21:39:29,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:29,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:29,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:29,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 21:39:29,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:39:29,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 21:39:29,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:29,461 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:29,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:39:29,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:39:29,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:39:29,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:39:29,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-14 21:39:29,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:29,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:29,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:29,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-14 21:39:29,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:39:29,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 21:39:29,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:29,495 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:29,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:39:29,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:39:29,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:39:29,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:39:29,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-14 21:39:29,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:29,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:29,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:29,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-14 21:39:29,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:39:29,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 21:39:29,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:29,561 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:29,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:39:29,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:39:29,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:39:29,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:39:29,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-14 21:39:29,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:29,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:29,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:29,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-14 21:39:29,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:39:29,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-14 21:39:29,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:29,707 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:29,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:39:29,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:39:29,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-14 21:39:29,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:39:29,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 636 [2020-10-14 21:39:29,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:29,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:30,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:30,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-14 21:39:30,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:39:30,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 317 [2020-10-14 21:39:30,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:30,103 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:30,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:39:30,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:39:30,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-14 21:39:30,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:39:30,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 815 [2020-10-14 21:39:30,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:30,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:30,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:30,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 21:39:30,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:39:30,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 21:39:30,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:30,195 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:30,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:39:30,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-14 21:39:30,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:39:30,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:39:30,582 INFO L134 CoverageAnalysis]: Checked inductivity of 2623 backedges. 1017 proven. 82 refuted. 0 times theorem prover too weak. 1524 trivial. 0 not checked. [2020-10-14 21:39:30,582 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [185276699] [2020-10-14 21:39:30,582 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:39:30,583 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:39:30,583 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312878951] [2020-10-14 21:39:30,583 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:39:30,584 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:39:30,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:39:30,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:39:30,584 INFO L87 Difference]: Start difference. First operand 6858 states and 7840 transitions. Second operand 7 states. [2020-10-14 21:39:32,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:39:32,098 INFO L93 Difference]: Finished difference Result 13718 states and 15688 transitions. [2020-10-14 21:39:32,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 21:39:32,101 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 949 [2020-10-14 21:39:32,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:39:32,120 INFO L225 Difference]: With dead ends: 13718 [2020-10-14 21:39:32,121 INFO L226 Difference]: Without dead ends: 6858 [2020-10-14 21:39:32,135 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 1 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 21:39:32,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6858 states. [2020-10-14 21:39:32,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6858 to 6304. [2020-10-14 21:39:32,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6304 states. [2020-10-14 21:39:32,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6304 states to 6304 states and 6942 transitions. [2020-10-14 21:39:32,239 INFO L78 Accepts]: Start accepts. Automaton has 6304 states and 6942 transitions. Word has length 949 [2020-10-14 21:39:32,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:39:32,240 INFO L479 AbstractCegarLoop]: Abstraction has 6304 states and 6942 transitions. [2020-10-14 21:39:32,240 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:39:32,241 INFO L276 IsEmpty]: Start isEmpty. Operand 6304 states and 6942 transitions. [2020-10-14 21:39:32,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1003 [2020-10-14 21:39:32,255 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:39:32,256 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 21:39:32,257 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 21:39:32,257 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:39:32,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:39:32,257 INFO L82 PathProgramCache]: Analyzing trace with hash 90313597, now seen corresponding path program 1 times [2020-10-14 21:39:32,258 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:39:32,258 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [752527855] [2020-10-14 21:39:32,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:39:32,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:32,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:33,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:34,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:36,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:36,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1026 [2020-10-14 21:39:36,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 21:39:36,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3792 [2020-10-14 21:39:36,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:36,208 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:36,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 21:39:36,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 690 [2020-10-14 21:39:36,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 278 [2020-10-14 21:39:36,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:39:36,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:39:36,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:36,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:36,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:36,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:39:36,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:39:36,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:39:36,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:36,328 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:36,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:39:36,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:39:36,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:39:36,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:39:36,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:39:36,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:36,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:36,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:36,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 21:39:36,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:39:36,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 21:39:36,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:36,368 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:36,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:39:36,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:39:36,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:39:36,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:39:36,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 21:39:36,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:36,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:36,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:36,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 21:39:36,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:39:36,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 21:39:36,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:36,483 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:36,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:39:36,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:39:36,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:39:36,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:39:36,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-14 21:39:36,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:36,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:36,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:36,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-14 21:39:36,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:39:36,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 21:39:36,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:36,515 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:36,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:39:36,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:39:36,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:39:36,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:39:36,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-14 21:39:36,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:36,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:36,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:36,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-14 21:39:36,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:39:36,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 21:39:36,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:36,546 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:36,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:39:36,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:39:36,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:39:36,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:39:36,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-14 21:39:36,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:36,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:36,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:36,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-14 21:39:36,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:39:36,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 21:39:36,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:36,606 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:36,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:39:36,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:39:36,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:39:36,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:39:36,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-14 21:39:36,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:36,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:36,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:36,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 21:39:36,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:39:36,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 21:39:36,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:36,697 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:36,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:39:36,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:39:36,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 21:39:36,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:39:36,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-14 21:39:36,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:36,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:36,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:36,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-14 21:39:36,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:39:36,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 135 [2020-10-14 21:39:36,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:36,885 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:36,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 21:39:36,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:39:36,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-14 21:39:36,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:39:36,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-14 21:39:36,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:36,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:37,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:37,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-14 21:39:37,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:39:37,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-14 21:39:37,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:37,050 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:37,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:39:37,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:39:37,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-14 21:39:37,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:39:37,519 INFO L134 CoverageAnalysis]: Checked inductivity of 3081 backedges. 1622 proven. 93 refuted. 0 times theorem prover too weak. 1366 trivial. 0 not checked. [2020-10-14 21:39:37,522 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [752527855] [2020-10-14 21:39:37,522 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:39:37,522 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-14 21:39:37,523 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272274364] [2020-10-14 21:39:37,524 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 21:39:37,524 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:39:37,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 21:39:37,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-10-14 21:39:37,524 INFO L87 Difference]: Start difference. First operand 6304 states and 6942 transitions. Second operand 10 states. [2020-10-14 21:39:39,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:39:39,965 INFO L93 Difference]: Finished difference Result 14086 states and 15705 transitions. [2020-10-14 21:39:39,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-14 21:39:39,966 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 1002 [2020-10-14 21:39:39,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:39:39,996 INFO L225 Difference]: With dead ends: 14086 [2020-10-14 21:39:39,996 INFO L226 Difference]: Without dead ends: 8154 [2020-10-14 21:39:40,009 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=130, Invalid=376, Unknown=0, NotChecked=0, Total=506 [2020-10-14 21:39:40,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8154 states. [2020-10-14 21:39:40,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8154 to 7596. [2020-10-14 21:39:40,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7596 states. [2020-10-14 21:39:40,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7596 states to 7596 states and 8517 transitions. [2020-10-14 21:39:40,160 INFO L78 Accepts]: Start accepts. Automaton has 7596 states and 8517 transitions. Word has length 1002 [2020-10-14 21:39:40,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:39:40,162 INFO L479 AbstractCegarLoop]: Abstraction has 7596 states and 8517 transitions. [2020-10-14 21:39:40,162 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 21:39:40,163 INFO L276 IsEmpty]: Start isEmpty. Operand 7596 states and 8517 transitions. [2020-10-14 21:39:40,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1098 [2020-10-14 21:39:40,192 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:39:40,195 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:39:40,195 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-14 21:39:40,196 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:39:40,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:39:40,197 INFO L82 PathProgramCache]: Analyzing trace with hash -2608502, now seen corresponding path program 1 times [2020-10-14 21:39:40,197 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:39:40,198 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [657309190] [2020-10-14 21:39:40,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:39:40,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:40,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:40,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:42,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:43,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:44,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:44,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:45,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:45,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1123 [2020-10-14 21:39:45,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 21:39:45,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5062 [2020-10-14 21:39:45,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:45,523 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:45,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 21:39:45,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 968 [2020-10-14 21:39:45,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-10-14 21:39:45,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:39:45,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:39:45,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:45,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:45,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:45,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:39:45,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:39:45,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 21:39:45,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:45,636 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:45,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:39:45,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:39:45,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:39:45,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:39:45,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:39:45,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:45,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:45,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:45,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 21:39:45,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:39:45,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 21:39:45,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:45,667 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:45,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:39:45,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:39:45,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:39:45,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:39:45,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 21:39:45,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:45,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:45,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:45,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 21:39:45,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:39:45,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 21:39:45,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:45,698 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:45,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:39:45,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:39:45,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:39:45,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:39:45,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-14 21:39:45,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:45,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:45,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:45,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-14 21:39:45,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:39:45,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 21:39:45,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:45,748 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:45,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:39:45,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:39:45,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:39:45,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:39:45,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-14 21:39:45,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:45,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:45,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:45,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-14 21:39:45,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:39:45,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 21:39:45,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:45,779 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:45,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:39:45,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:39:45,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:39:45,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:39:45,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-14 21:39:45,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:45,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:45,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:45,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-14 21:39:45,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:39:45,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 21:39:45,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:45,820 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:45,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:39:45,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:39:45,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:39:45,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:39:45,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-14 21:39:45,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:45,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:45,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:45,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 21:39:45,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:39:45,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 21:39:45,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:45,871 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:45,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:39:45,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:39:45,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:39:45,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:39:45,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-14 21:39:45,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:45,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:45,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:45,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-14 21:39:45,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:39:45,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-14 21:39:45,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:45,944 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:45,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:39:45,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:39:45,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:39:45,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:39:45,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-14 21:39:45,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:45,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:46,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:46,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-14 21:39:46,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:39:46,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-14 21:39:46,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:46,024 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:46,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:39:46,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:39:46,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-14 21:39:46,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:39:46,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 952 [2020-10-14 21:39:46,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:46,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:46,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:46,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:46,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-14 21:39:46,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:39:46,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-14 21:39:46,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:46,115 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:46,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:39:46,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:39:46,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-14 21:39:46,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:39:46,674 INFO L134 CoverageAnalysis]: Checked inductivity of 3859 backedges. 524 proven. 9 refuted. 0 times theorem prover too weak. 3326 trivial. 0 not checked. [2020-10-14 21:39:46,674 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [657309190] [2020-10-14 21:39:46,675 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:39:46,675 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-14 21:39:46,675 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658781299] [2020-10-14 21:39:46,682 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 21:39:46,682 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:39:46,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 21:39:46,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 21:39:46,683 INFO L87 Difference]: Start difference. First operand 7596 states and 8517 transitions. Second operand 6 states. [2020-10-14 21:39:48,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:39:48,743 INFO L93 Difference]: Finished difference Result 17202 states and 19479 transitions. [2020-10-14 21:39:48,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 21:39:48,745 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 1097 [2020-10-14 21:39:48,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:39:48,775 INFO L225 Difference]: With dead ends: 17202 [2020-10-14 21:39:48,776 INFO L226 Difference]: Without dead ends: 9790 [2020-10-14 21:39:48,796 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-14 21:39:48,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9790 states. [2020-10-14 21:39:48,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9790 to 8872. [2020-10-14 21:39:48,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8872 states. [2020-10-14 21:39:48,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8872 states to 8872 states and 9816 transitions. [2020-10-14 21:39:48,953 INFO L78 Accepts]: Start accepts. Automaton has 8872 states and 9816 transitions. Word has length 1097 [2020-10-14 21:39:48,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:39:48,954 INFO L479 AbstractCegarLoop]: Abstraction has 8872 states and 9816 transitions. [2020-10-14 21:39:48,954 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 21:39:48,955 INFO L276 IsEmpty]: Start isEmpty. Operand 8872 states and 9816 transitions. [2020-10-14 21:39:48,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1111 [2020-10-14 21:39:48,975 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:39:48,975 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:39:48,976 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-14 21:39:48,976 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:39:48,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:39:48,977 INFO L82 PathProgramCache]: Analyzing trace with hash -85040359, now seen corresponding path program 1 times [2020-10-14 21:39:48,977 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:39:48,977 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [511727958] [2020-10-14 21:39:48,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:39:49,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:49,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:49,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:51,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:51,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:54,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:54,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1136 [2020-10-14 21:39:54,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 21:39:54,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5113 [2020-10-14 21:39:54,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:54,252 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:54,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:39:54,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 956 [2020-10-14 21:39:54,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-14 21:39:54,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:39:54,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:39:54,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:54,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:54,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:54,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:39:54,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:39:54,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 21:39:54,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:54,397 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:54,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:39:54,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:39:54,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:39:54,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:39:54,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:39:54,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:54,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:54,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:54,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 21:39:54,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:39:54,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 21:39:54,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:54,428 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:54,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:39:54,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:39:54,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:39:54,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:39:54,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 21:39:54,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:54,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:54,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:54,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 21:39:54,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:39:54,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 21:39:54,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:54,467 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:54,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:39:54,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:39:54,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:39:54,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:39:54,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-14 21:39:54,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:54,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:54,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:54,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-14 21:39:54,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:39:54,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 21:39:54,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:54,501 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:54,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:39:54,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:39:54,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:39:54,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:39:54,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-14 21:39:54,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:54,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:54,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:54,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-14 21:39:54,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:39:54,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 21:39:54,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:54,531 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:54,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:39:54,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:39:54,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:39:54,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:39:54,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-14 21:39:54,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:54,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:54,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:54,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-14 21:39:54,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:39:54,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 21:39:54,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:54,575 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:54,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:39:54,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:39:54,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:39:54,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:39:54,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-14 21:39:54,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:54,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:54,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:54,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 21:39:54,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:39:54,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 21:39:54,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:54,619 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:54,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:39:54,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:39:54,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:39:54,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:39:54,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-14 21:39:54,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:54,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:54,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:54,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-14 21:39:54,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:39:54,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 21:39:54,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:54,661 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:54,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:39:54,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:39:54,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:39:54,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:39:54,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-14 21:39:54,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:54,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:54,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:54,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 21:39:54,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:39:54,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 21:39:54,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:54,750 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:54,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:39:54,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:39:54,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-14 21:39:54,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:39:54,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 940 [2020-10-14 21:39:54,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:54,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:54,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:54,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-14 21:39:54,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:39:54,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-14 21:39:54,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:54,853 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:54,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:39:54,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:39:54,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-14 21:39:54,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:39:55,354 INFO L134 CoverageAnalysis]: Checked inductivity of 3892 backedges. 1293 proven. 2 refuted. 0 times theorem prover too weak. 2597 trivial. 0 not checked. [2020-10-14 21:39:55,355 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [511727958] [2020-10-14 21:39:55,355 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:39:55,355 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:39:55,355 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496104628] [2020-10-14 21:39:55,356 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:39:55,357 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:39:55,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:39:55,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:39:55,357 INFO L87 Difference]: Start difference. First operand 8872 states and 9816 transitions. Second operand 7 states. [2020-10-14 21:39:56,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:39:56,840 INFO L93 Difference]: Finished difference Result 17948 states and 19978 transitions. [2020-10-14 21:39:56,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 21:39:56,841 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1110 [2020-10-14 21:39:56,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:39:56,864 INFO L225 Difference]: With dead ends: 17948 [2020-10-14 21:39:56,864 INFO L226 Difference]: Without dead ends: 7790 [2020-10-14 21:39:56,968 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2020-10-14 21:39:56,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7790 states. [2020-10-14 21:39:57,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7790 to 7756. [2020-10-14 21:39:57,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7756 states. [2020-10-14 21:39:57,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7756 states to 7756 states and 8419 transitions. [2020-10-14 21:39:57,087 INFO L78 Accepts]: Start accepts. Automaton has 7756 states and 8419 transitions. Word has length 1110 [2020-10-14 21:39:57,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:39:57,088 INFO L479 AbstractCegarLoop]: Abstraction has 7756 states and 8419 transitions. [2020-10-14 21:39:57,088 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:39:57,088 INFO L276 IsEmpty]: Start isEmpty. Operand 7756 states and 8419 transitions. [2020-10-14 21:39:57,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1123 [2020-10-14 21:39:57,110 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:39:57,111 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:39:57,112 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-14 21:39:57,112 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:39:57,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:39:57,113 INFO L82 PathProgramCache]: Analyzing trace with hash -1427814975, now seen corresponding path program 1 times [2020-10-14 21:39:57,113 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:39:57,113 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [277018913] [2020-10-14 21:39:57,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:39:57,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:57,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:57,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:00,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:01,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:02,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:02,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1148 [2020-10-14 21:40:02,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 21:40:02,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5062 [2020-10-14 21:40:02,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:02,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:02,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:40:02,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 871 [2020-10-14 21:40:02,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-14 21:40:02,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:02,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:40:02,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:02,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:02,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:02,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:40:02,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:02,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 21:40:02,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:02,484 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:02,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:02,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:02,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:02,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:02,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:40:02,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:02,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:02,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:02,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 21:40:02,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:02,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 21:40:02,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:02,516 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:02,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:02,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:02,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:02,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:40:02,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 21:40:02,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:02,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:02,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:02,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 21:40:02,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:02,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 21:40:02,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:02,549 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:02,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:02,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:02,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:02,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:02,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-14 21:40:02,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:02,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:02,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:02,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-14 21:40:02,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:02,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 21:40:02,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:02,581 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:02,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:02,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:02,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:02,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:02,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-14 21:40:02,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:02,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:02,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:02,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-14 21:40:02,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:02,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 21:40:02,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:02,624 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:02,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:02,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:02,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:02,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:02,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-14 21:40:02,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:02,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:02,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:02,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-14 21:40:02,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:02,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 21:40:02,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:02,680 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:02,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:02,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:02,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:02,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:02,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-14 21:40:02,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:02,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:02,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:02,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 21:40:02,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:02,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 21:40:02,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:02,722 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:02,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:02,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:02,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:02,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:02,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-14 21:40:02,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:02,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:02,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:02,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-14 21:40:02,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:02,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-10-14 21:40:02,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:02,868 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:02,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:40:02,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:02,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 174 [2020-10-14 21:40:02,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:02,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-14 21:40:02,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:02,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:02,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:02,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-14 21:40:02,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:02,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-14 21:40:02,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:02,969 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:02,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:40:02,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:40:02,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-14 21:40:02,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:40:03,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 952 [2020-10-14 21:40:03,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:03,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:03,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:03,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-14 21:40:03,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:03,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-14 21:40:03,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:03,102 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:03,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:03,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 117 [2020-10-14 21:40:03,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:03,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:03,786 INFO L134 CoverageAnalysis]: Checked inductivity of 3964 backedges. 1137 proven. 94 refuted. 0 times theorem prover too weak. 2733 trivial. 0 not checked. [2020-10-14 21:40:03,787 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [277018913] [2020-10-14 21:40:03,787 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:40:03,787 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:40:03,787 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844428236] [2020-10-14 21:40:03,788 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:40:03,788 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:40:03,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:40:03,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:40:03,789 INFO L87 Difference]: Start difference. First operand 7756 states and 8419 transitions. Second operand 7 states. [2020-10-14 21:40:05,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:40:05,140 INFO L93 Difference]: Finished difference Result 15144 states and 16468 transitions. [2020-10-14 21:40:05,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 21:40:05,141 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1122 [2020-10-14 21:40:05,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:40:05,160 INFO L225 Difference]: With dead ends: 15144 [2020-10-14 21:40:05,160 INFO L226 Difference]: Without dead ends: 7760 [2020-10-14 21:40:05,173 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-10-14 21:40:05,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7760 states. [2020-10-14 21:40:05,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7760 to 7572. [2020-10-14 21:40:05,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7572 states. [2020-10-14 21:40:05,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7572 states to 7572 states and 8045 transitions. [2020-10-14 21:40:05,292 INFO L78 Accepts]: Start accepts. Automaton has 7572 states and 8045 transitions. Word has length 1122 [2020-10-14 21:40:05,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:40:05,294 INFO L479 AbstractCegarLoop]: Abstraction has 7572 states and 8045 transitions. [2020-10-14 21:40:05,294 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:40:05,294 INFO L276 IsEmpty]: Start isEmpty. Operand 7572 states and 8045 transitions. [2020-10-14 21:40:05,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1579 [2020-10-14 21:40:05,327 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:40:05,328 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 8, 7, 7, 7, 7, 7, 7, 6, 5, 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, 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 21:40:05,328 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-14 21:40:05,329 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:40:05,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:40:05,329 INFO L82 PathProgramCache]: Analyzing trace with hash 2020876321, now seen corresponding path program 1 times [2020-10-14 21:40:05,330 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:40:05,330 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [255779706] [2020-10-14 21:40:05,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:40:05,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:05,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:06,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:09,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:10,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:10,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1610 [2020-10-14 21:40:10,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 21:40:10,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4882 [2020-10-14 21:40:10,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:10,528 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:10,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:40:10,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1430 [2020-10-14 21:40:10,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-14 21:40:10,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:40:10,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:40:10,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:10,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:10,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:10,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:40:10,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:10,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 21:40:10,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:10,748 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:10,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:10,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:10,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:10,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:10,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:40:10,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:10,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:10,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:10,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 21:40:10,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:10,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 21:40:10,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:10,781 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:10,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:10,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:10,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:10,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:10,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 21:40:10,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:10,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:10,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:10,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 21:40:10,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:10,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 21:40:10,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:10,815 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:10,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:10,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:10,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:10,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:10,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-14 21:40:10,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:10,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:10,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:10,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-14 21:40:10,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:10,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 21:40:10,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:10,864 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:10,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:10,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:10,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:10,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:10,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-14 21:40:10,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:10,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:10,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:10,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-14 21:40:10,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:10,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 21:40:10,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:10,894 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:10,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:10,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:10,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:10,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:10,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-14 21:40:10,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:10,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:10,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:10,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-14 21:40:10,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:10,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 21:40:10,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:10,936 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:10,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:10,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:10,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:10,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:10,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-14 21:40:10,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:10,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:10,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:10,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 21:40:10,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:10,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 21:40:10,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:10,981 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:10,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:10,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:10,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:10,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:10,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-14 21:40:10,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:10,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:11,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:11,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-14 21:40:11,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:11,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 21:40:11,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:11,024 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:11,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:11,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:11,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:11,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:11,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-14 21:40:11,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:11,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:11,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:11,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-14 21:40:11,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:11,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 21:40:11,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:11,079 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:11,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:11,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:11,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:11,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:11,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-14 21:40:11,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:11,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:11,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:11,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-14 21:40:11,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:11,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 21:40:11,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:11,128 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:11,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:11,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:11,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:11,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:11,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-14 21:40:11,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:11,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:11,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:11,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-14 21:40:11,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:11,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 21:40:11,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:11,197 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:11,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:11,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:11,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:11,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:11,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-14 21:40:11,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:11,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:11,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:11,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-14 21:40:11,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:11,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-14 21:40:11,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:11,292 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:11,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:40:11,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:11,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-14 21:40:11,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:11,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1408 [2020-10-14 21:40:11,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:11,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:11,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:11,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-14 21:40:11,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:11,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-14 21:40:11,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:11,401 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:11,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:40:11,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:40:11,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-14 21:40:11,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:12,560 INFO L134 CoverageAnalysis]: Checked inductivity of 7629 backedges. 1839 proven. 2 refuted. 0 times theorem prover too weak. 5788 trivial. 0 not checked. [2020-10-14 21:40:12,561 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [255779706] [2020-10-14 21:40:12,561 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:40:12,561 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:40:12,561 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748961474] [2020-10-14 21:40:12,562 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:40:12,563 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:40:12,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:40:12,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:40:12,563 INFO L87 Difference]: Start difference. First operand 7572 states and 8045 transitions. Second operand 7 states. [2020-10-14 21:40:13,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:40:13,959 INFO L93 Difference]: Finished difference Result 14242 states and 15170 transitions. [2020-10-14 21:40:13,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 21:40:13,959 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1578 [2020-10-14 21:40:13,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:40:13,974 INFO L225 Difference]: With dead ends: 14242 [2020-10-14 21:40:13,974 INFO L226 Difference]: Without dead ends: 5938 [2020-10-14 21:40:13,986 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 31 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 21:40:13,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5938 states. [2020-10-14 21:40:14,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5938 to 4992. [2020-10-14 21:40:14,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4992 states. [2020-10-14 21:40:14,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4992 states to 4992 states and 5163 transitions. [2020-10-14 21:40:14,067 INFO L78 Accepts]: Start accepts. Automaton has 4992 states and 5163 transitions. Word has length 1578 [2020-10-14 21:40:14,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:40:14,068 INFO L479 AbstractCegarLoop]: Abstraction has 4992 states and 5163 transitions. [2020-10-14 21:40:14,069 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:40:14,069 INFO L276 IsEmpty]: Start isEmpty. Operand 4992 states and 5163 transitions. [2020-10-14 21:40:14,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1708 [2020-10-14 21:40:14,103 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:40:14,104 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 9, 9, 9, 8, 8, 8, 8, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:40:14,104 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-14 21:40:14,104 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:40:14,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:40:14,105 INFO L82 PathProgramCache]: Analyzing trace with hash -733856110, now seen corresponding path program 1 times [2020-10-14 21:40:14,105 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:40:14,105 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [257615213] [2020-10-14 21:40:14,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:40:14,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:14,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:15,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:18,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:18,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1741 [2020-10-14 21:40:18,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:40:18,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3628 [2020-10-14 21:40:18,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:18,106 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:18,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 21:40:18,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1561 [2020-10-14 21:40:18,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-14 21:40:18,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:18,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:40:18,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:18,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:18,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:18,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:40:18,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:18,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:40:18,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:18,370 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:18,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:18,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:18,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:18,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:18,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:40:18,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:18,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:18,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:18,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 21:40:18,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:18,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 21:40:18,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:18,429 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:18,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:18,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:18,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:18,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:40:18,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 21:40:18,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:18,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:18,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:18,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 21:40:18,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:18,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 21:40:18,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:18,481 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:18,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:18,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:18,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:18,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:40:18,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-14 21:40:18,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:18,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:18,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:18,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-14 21:40:18,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:18,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 21:40:18,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:18,518 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:18,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:18,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:18,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:18,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:18,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-14 21:40:18,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:18,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:18,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:18,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-14 21:40:18,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:18,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 21:40:18,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:18,550 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:18,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:18,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:18,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:18,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:18,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-14 21:40:18,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:18,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:18,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:18,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-14 21:40:18,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:18,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 21:40:18,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:18,591 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:18,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:18,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:18,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:18,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:18,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-14 21:40:18,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:18,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:18,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:18,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 21:40:18,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:18,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 21:40:18,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:18,639 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:18,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:18,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:18,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:18,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:18,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-14 21:40:18,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:18,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:18,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:18,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-14 21:40:18,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:18,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 21:40:18,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:18,684 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:18,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:18,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:18,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:18,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:18,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-14 21:40:18,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:18,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:18,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:18,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-14 21:40:18,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:18,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 21:40:18,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:18,738 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:18,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:18,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:18,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:18,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:18,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-14 21:40:18,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:18,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:18,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:18,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-14 21:40:18,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:18,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 21:40:18,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:18,800 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:18,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:18,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:18,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:18,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:40:18,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-14 21:40:18,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:18,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:18,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:18,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-14 21:40:18,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:18,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-14 21:40:18,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:18,893 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:18,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:18,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:18,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:18,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:18,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-14 21:40:18,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:18,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:18,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:18,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-14 21:40:18,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:18,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 21:40:18,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:18,981 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:18,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:18,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:18,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:18,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:19,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1410 [2020-10-14 21:40:19,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:19,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:19,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:19,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-14 21:40:19,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:19,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-14 21:40:19,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:19,116 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:19,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:40:19,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:19,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-14 21:40:19,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:19,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1537 [2020-10-14 21:40:19,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:19,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:19,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:19,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-14 21:40:19,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:19,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-14 21:40:19,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:19,282 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:19,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 21:40:19,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:40:19,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-14 21:40:19,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:20,791 INFO L134 CoverageAnalysis]: Checked inductivity of 9046 backedges. 1983 proven. 33 refuted. 0 times theorem prover too weak. 7030 trivial. 0 not checked. [2020-10-14 21:40:20,792 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [257615213] [2020-10-14 21:40:20,792 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:40:20,792 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 21:40:20,792 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033526160] [2020-10-14 21:40:20,793 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 21:40:20,793 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:40:20,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 21:40:20,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-14 21:40:20,794 INFO L87 Difference]: Start difference. First operand 4992 states and 5163 transitions. Second operand 8 states. [2020-10-14 21:40:22,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:40:22,671 INFO L93 Difference]: Finished difference Result 9637 states and 9978 transitions. [2020-10-14 21:40:22,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 21:40:22,672 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1707 [2020-10-14 21:40:22,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:40:22,679 INFO L225 Difference]: With dead ends: 9637 [2020-10-14 21:40:22,679 INFO L226 Difference]: Without dead ends: 4996 [2020-10-14 21:40:22,683 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-10-14 21:40:22,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4996 states. [2020-10-14 21:40:22,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4996 to 4992. [2020-10-14 21:40:22,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4992 states. [2020-10-14 21:40:22,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4992 states to 4992 states and 5157 transitions. [2020-10-14 21:40:22,742 INFO L78 Accepts]: Start accepts. Automaton has 4992 states and 5157 transitions. Word has length 1707 [2020-10-14 21:40:22,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:40:22,744 INFO L479 AbstractCegarLoop]: Abstraction has 4992 states and 5157 transitions. [2020-10-14 21:40:22,744 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 21:40:22,744 INFO L276 IsEmpty]: Start isEmpty. Operand 4992 states and 5157 transitions. [2020-10-14 21:40:22,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1820 [2020-10-14 21:40:22,786 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:40:22,787 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 10, 10, 9, 8, 8, 8, 8, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:40:22,787 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-14 21:40:22,787 INFO L427 AbstractCegarLoop]: === Iteration 21 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:40:22,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:40:22,788 INFO L82 PathProgramCache]: Analyzing trace with hash -1526732926, now seen corresponding path program 1 times [2020-10-14 21:40:22,788 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:40:22,789 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1227407570] [2020-10-14 21:40:22,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:40:23,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:23,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:24,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:25,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:28,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:28,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1855 [2020-10-14 21:40:28,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 21:40:28,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5290 [2020-10-14 21:40:28,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:28,446 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:28,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:40:28,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1561 [2020-10-14 21:40:28,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-10-14 21:40:28,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:40:28,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:40:28,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:28,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:28,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:28,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:40:28,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:28,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:40:28,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:28,780 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:28,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:28,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:28,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:28,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:40:28,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:40:28,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:28,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:28,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:28,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 21:40:28,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:28,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 21:40:28,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:28,853 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:28,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:28,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:28,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:28,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:28,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 21:40:28,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:28,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:28,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:28,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 21:40:28,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:28,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 21:40:28,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:28,908 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:28,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:28,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:28,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:28,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:28,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-14 21:40:28,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:28,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:28,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:28,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-14 21:40:28,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:28,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 21:40:28,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:28,963 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:28,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:28,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:28,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:28,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:40:28,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-14 21:40:28,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:28,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:29,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:29,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-14 21:40:29,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:29,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 21:40:29,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:29,008 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:29,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:29,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:29,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:29,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:29,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-14 21:40:29,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:29,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:29,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:29,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-14 21:40:29,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:29,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 21:40:29,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:29,053 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:29,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:29,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:29,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:29,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:29,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-14 21:40:29,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:29,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:29,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:29,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 21:40:29,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:29,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 21:40:29,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:29,109 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:29,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:29,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:29,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:29,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:29,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-14 21:40:29,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:29,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:29,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:29,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-14 21:40:29,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:29,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-14 21:40:29,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:29,178 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:29,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:29,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:29,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:29,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:29,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-14 21:40:29,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:29,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:29,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:29,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-14 21:40:29,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:29,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 21:40:29,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:29,289 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:29,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:29,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:29,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:29,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:40:29,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-14 21:40:29,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:29,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:29,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:29,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-14 21:40:29,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:29,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-14 21:40:29,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:29,378 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:29,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:29,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:29,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:29,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:40:29,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-14 21:40:29,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:29,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:29,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:29,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-14 21:40:29,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:29,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-14 21:40:29,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:29,501 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:29,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:29,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:29,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:29,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:29,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-14 21:40:29,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:29,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:29,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:29,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-14 21:40:29,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:29,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 21:40:29,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:29,596 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:29,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:29,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:29,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:29,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:29,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1410 [2020-10-14 21:40:29,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:29,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:29,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:29,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-14 21:40:29,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:29,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-14 21:40:29,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:29,736 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:29,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:40:29,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:29,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-14 21:40:29,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:29,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1537 [2020-10-14 21:40:29,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:29,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:29,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:29,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-14 21:40:29,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:29,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-10-14 21:40:29,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:29,927 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:29,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:40:29,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:40:29,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-14 21:40:29,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:40:30,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1649 [2020-10-14 21:40:30,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:30,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:30,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:30,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-14 21:40:30,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:30,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 21:40:30,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:30,252 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:30,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:30,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 117 [2020-10-14 21:40:30,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:30,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:31,640 INFO L134 CoverageAnalysis]: Checked inductivity of 10482 backedges. 2067 proven. 111 refuted. 0 times theorem prover too weak. 8304 trivial. 0 not checked. [2020-10-14 21:40:31,641 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1227407570] [2020-10-14 21:40:31,641 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:40:31,641 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:40:31,641 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236989669] [2020-10-14 21:40:31,642 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:40:31,642 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:40:31,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:40:31,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:40:31,643 INFO L87 Difference]: Start difference. First operand 4992 states and 5157 transitions. Second operand 7 states. [2020-10-14 21:40:32,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:40:32,931 INFO L93 Difference]: Finished difference Result 9614 states and 9941 transitions. [2020-10-14 21:40:32,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 21:40:32,933 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1819 [2020-10-14 21:40:32,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:40:32,943 INFO L225 Difference]: With dead ends: 9614 [2020-10-14 21:40:32,943 INFO L226 Difference]: Without dead ends: 4994 [2020-10-14 21:40:32,949 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2020-10-14 21:40:32,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4994 states. [2020-10-14 21:40:33,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4994 to 4992. [2020-10-14 21:40:33,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4992 states. [2020-10-14 21:40:33,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4992 states to 4992 states and 5147 transitions. [2020-10-14 21:40:33,011 INFO L78 Accepts]: Start accepts. Automaton has 4992 states and 5147 transitions. Word has length 1819 [2020-10-14 21:40:33,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:40:33,012 INFO L479 AbstractCegarLoop]: Abstraction has 4992 states and 5147 transitions. [2020-10-14 21:40:33,012 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:40:33,012 INFO L276 IsEmpty]: Start isEmpty. Operand 4992 states and 5147 transitions. [2020-10-14 21:40:33,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1912 [2020-10-14 21:40:33,049 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:40:33,050 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 10, 10, 10, 9, 9, 9, 9, 8, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:40:33,051 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-14 21:40:33,051 INFO L427 AbstractCegarLoop]: === Iteration 22 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:40:33,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:40:33,051 INFO L82 PathProgramCache]: Analyzing trace with hash -1810673618, now seen corresponding path program 1 times [2020-10-14 21:40:33,052 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:40:33,052 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [708330014] [2020-10-14 21:40:33,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:40:33,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:33,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:34,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:36,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:38,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:38,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1949 [2020-10-14 21:40:38,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 21:40:38,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5046 [2020-10-14 21:40:38,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:38,354 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:38,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 21:40:38,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1688 [2020-10-14 21:40:38,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 226 [2020-10-14 21:40:38,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:38,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:40:38,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:38,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:38,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:38,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:40:38,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:38,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:40:38,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:38,643 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:38,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:38,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:38,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:38,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:38,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:40:38,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:38,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:38,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:38,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 21:40:38,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:38,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 21:40:38,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:38,679 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:38,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:38,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:38,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:38,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:38,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 21:40:38,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:38,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:38,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:38,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 21:40:38,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:38,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 21:40:38,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:38,711 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:38,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:38,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:38,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:38,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:38,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-14 21:40:38,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:38,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:38,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:38,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-14 21:40:38,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:38,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 21:40:38,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:38,744 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:38,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:38,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:38,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:38,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:38,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-14 21:40:38,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:38,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:38,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:38,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-14 21:40:38,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:38,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 21:40:38,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:38,772 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:38,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:38,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:38,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:38,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:38,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-14 21:40:38,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:38,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:38,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:38,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-14 21:40:38,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:38,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 21:40:38,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:38,836 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:38,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:38,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:38,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:38,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:38,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-14 21:40:38,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:38,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:38,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:38,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 21:40:38,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:38,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 21:40:38,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:38,907 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:38,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:38,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:38,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:38,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:40:38,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-14 21:40:38,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:38,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:38,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:38,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-14 21:40:38,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:38,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-14 21:40:38,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:38,976 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:38,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:38,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:38,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:38,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:39,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-14 21:40:39,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:39,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:39,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:39,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-14 21:40:39,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:39,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-14 21:40:39,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:39,063 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:39,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:39,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:39,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:39,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:39,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-14 21:40:39,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:39,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:39,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:39,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-14 21:40:39,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:39,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 21:40:39,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:39,270 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:39,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:39,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:39,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:39,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:40:39,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-14 21:40:39,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:39,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:39,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:39,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-14 21:40:39,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:39,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-14 21:40:39,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:39,361 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:39,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:39,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:39,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:39,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:40:39,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-14 21:40:39,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:39,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:39,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:39,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-14 21:40:39,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:39,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 21:40:39,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:39,414 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:39,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:39,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:39,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:39,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:39,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1410 [2020-10-14 21:40:39,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:39,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:39,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:39,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-14 21:40:39,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:39,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 21:40:39,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:39,451 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:39,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:39,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:39,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:39,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:39,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1537 [2020-10-14 21:40:39,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:39,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:39,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:39,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-14 21:40:39,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:39,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-14 21:40:39,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:39,543 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:39,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:40:39,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:39,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-14 21:40:39,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:39,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1662 [2020-10-14 21:40:39,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:39,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:39,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:39,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-14 21:40:39,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:39,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 21:40:39,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:39,607 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:39,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:40:39,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:40:39,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-14 21:40:39,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:39,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1741 [2020-10-14 21:40:39,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:39,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:39,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:39,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-14 21:40:39,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:39,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-10-14 21:40:39,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:39,735 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:39,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 21:40:39,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:40:39,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-14 21:40:39,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:41,546 INFO L134 CoverageAnalysis]: Checked inductivity of 11721 backedges. 3205 proven. 49 refuted. 0 times theorem prover too weak. 8467 trivial. 0 not checked. [2020-10-14 21:40:41,547 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [708330014] [2020-10-14 21:40:41,547 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:40:41,547 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 21:40:41,547 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103709558] [2020-10-14 21:40:41,548 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 21:40:41,548 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:40:41,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 21:40:41,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 21:40:41,549 INFO L87 Difference]: Start difference. First operand 4992 states and 5147 transitions. Second operand 8 states. [2020-10-14 21:40:43,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:40:43,033 INFO L93 Difference]: Finished difference Result 6489 states and 6735 transitions. [2020-10-14 21:40:43,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 21:40:43,036 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1911 [2020-10-14 21:40:43,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:40:43,047 INFO L225 Difference]: With dead ends: 6489 [2020-10-14 21:40:43,047 INFO L226 Difference]: Without dead ends: 6282 [2020-10-14 21:40:43,050 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 37 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-14 21:40:43,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6282 states. [2020-10-14 21:40:43,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6282 to 5912. [2020-10-14 21:40:43,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5912 states. [2020-10-14 21:40:43,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5912 states to 5912 states and 6135 transitions. [2020-10-14 21:40:43,136 INFO L78 Accepts]: Start accepts. Automaton has 5912 states and 6135 transitions. Word has length 1911 [2020-10-14 21:40:43,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:40:43,138 INFO L479 AbstractCegarLoop]: Abstraction has 5912 states and 6135 transitions. [2020-10-14 21:40:43,138 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 21:40:43,139 INFO L276 IsEmpty]: Start isEmpty. Operand 5912 states and 6135 transitions. [2020-10-14 21:40:43,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2128 [2020-10-14 21:40:43,187 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:40:43,188 INFO L422 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 15, 15, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 11, 11, 11, 10, 10, 10, 10, 9, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-14 21:40:43,188 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-14 21:40:43,188 INFO L427 AbstractCegarLoop]: === Iteration 23 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:40:43,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:40:43,189 INFO L82 PathProgramCache]: Analyzing trace with hash -2114250818, now seen corresponding path program 1 times [2020-10-14 21:40:43,190 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:40:43,190 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1077409035] [2020-10-14 21:40:43,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:40:43,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:43,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:44,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:46,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:48,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:48,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 2169 [2020-10-14 21:40:48,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 21:40:48,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5035 [2020-10-14 21:40:48,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:48,539 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:48,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:40:48,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1776 [2020-10-14 21:40:48,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-14 21:40:48,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:48,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:40:48,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:48,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:48,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:48,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:40:48,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:48,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 21:40:48,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:48,726 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:48,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:48,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:48,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:48,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:48,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:40:48,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:48,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:48,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:48,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 21:40:48,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:48,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 21:40:48,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:48,769 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:48,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:48,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:48,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:48,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:48,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 21:40:48,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:48,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:48,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:48,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 21:40:48,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:48,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 21:40:48,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:48,803 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:48,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:48,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:48,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:48,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:48,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-14 21:40:48,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:48,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:48,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:48,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-14 21:40:48,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:48,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 21:40:48,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:48,839 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:48,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:48,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:48,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:48,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:48,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-14 21:40:48,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:48,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:48,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:48,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-14 21:40:48,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:48,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 21:40:48,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:48,889 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:48,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:48,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:48,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:48,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:40:48,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-14 21:40:48,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:48,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:48,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:48,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-14 21:40:48,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:48,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 21:40:48,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:48,943 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:48,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:48,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:48,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:48,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:48,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-14 21:40:48,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:48,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:48,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:48,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 21:40:48,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:48,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 21:40:48,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:48,988 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:48,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:48,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:48,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:48,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:48,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-14 21:40:49,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:49,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:49,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:49,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-14 21:40:49,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:49,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 21:40:49,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:49,038 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:49,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:49,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:49,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:49,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:49,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-14 21:40:49,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:49,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:49,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:49,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-14 21:40:49,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:49,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 21:40:49,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:49,097 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:49,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:49,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:49,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:49,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:49,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-14 21:40:49,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:49,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:49,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:49,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-14 21:40:49,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:49,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 21:40:49,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:49,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:49,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:49,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:49,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:49,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:49,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-14 21:40:49,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:49,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:49,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:49,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-14 21:40:49,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:49,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 21:40:49,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:49,208 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:49,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:49,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:49,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:49,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:49,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-14 21:40:49,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:49,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:49,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:49,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-14 21:40:49,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:49,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 21:40:49,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:49,269 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:49,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:49,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:49,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:49,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:49,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1410 [2020-10-14 21:40:49,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:49,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:49,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:49,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-14 21:40:49,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:49,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 21:40:49,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:49,319 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:49,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:49,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:49,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:49,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:49,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1537 [2020-10-14 21:40:49,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:49,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:49,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:49,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-14 21:40:49,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:49,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 21:40:49,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:49,371 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:49,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:49,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:49,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:49,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:49,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1662 [2020-10-14 21:40:49,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:49,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:49,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:49,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-14 21:40:49,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:49,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 21:40:49,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:49,438 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:49,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:40:49,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:49,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-14 21:40:49,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:49,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1748 [2020-10-14 21:40:49,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:49,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:49,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:49,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-14 21:40:49,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:49,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-14 21:40:49,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:49,559 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:49,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:40:49,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:40:49,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 131 [2020-10-14 21:40:49,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:49,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1878 [2020-10-14 21:40:49,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:49,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:49,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:49,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-14 21:40:49,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:49,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-14 21:40:49,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:49,719 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:49,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:49,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-10-14 21:40:49,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:49,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:49,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1957 [2020-10-14 21:40:49,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:49,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:49,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:49,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-14 21:40:49,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:49,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 21:40:49,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:49,780 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:49,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:49,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 117 [2020-10-14 21:40:49,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:49,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:51,867 INFO L134 CoverageAnalysis]: Checked inductivity of 14873 backedges. 2601 proven. 194 refuted. 0 times theorem prover too weak. 12078 trivial. 0 not checked. [2020-10-14 21:40:51,868 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1077409035] [2020-10-14 21:40:51,868 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:40:51,868 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:40:51,869 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123722060] [2020-10-14 21:40:51,870 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:40:51,876 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:40:51,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:40:51,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:40:51,877 INFO L87 Difference]: Start difference. First operand 5912 states and 6135 transitions. Second operand 7 states. [2020-10-14 21:40:53,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:40:53,213 INFO L93 Difference]: Finished difference Result 11640 states and 12091 transitions. [2020-10-14 21:40:53,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 21:40:53,213 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 2127 [2020-10-14 21:40:53,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:40:53,221 INFO L225 Difference]: With dead ends: 11640 [2020-10-14 21:40:53,222 INFO L226 Difference]: Without dead ends: 5914 [2020-10-14 21:40:53,228 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 38 SyntacticMatches, 1 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 21:40:53,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5914 states. [2020-10-14 21:40:53,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5914 to 5908. [2020-10-14 21:40:53,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5908 states. [2020-10-14 21:40:53,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5908 states to 5908 states and 6115 transitions. [2020-10-14 21:40:53,321 INFO L78 Accepts]: Start accepts. Automaton has 5908 states and 6115 transitions. Word has length 2127 [2020-10-14 21:40:53,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:40:53,323 INFO L479 AbstractCegarLoop]: Abstraction has 5908 states and 6115 transitions. [2020-10-14 21:40:53,323 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:40:53,323 INFO L276 IsEmpty]: Start isEmpty. Operand 5908 states and 6115 transitions. [2020-10-14 21:40:53,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2222 [2020-10-14 21:40:53,383 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:40:53,384 INFO L422 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 12, 12, 12, 11, 11, 11, 11, 10, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 6, 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, 3, 3, 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] [2020-10-14 21:40:53,384 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-14 21:40:53,385 INFO L427 AbstractCegarLoop]: === Iteration 24 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:40:53,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:40:53,385 INFO L82 PathProgramCache]: Analyzing trace with hash 1775712666, now seen corresponding path program 1 times [2020-10-14 21:40:53,386 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:40:53,386 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [621453056] [2020-10-14 21:40:53,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:40:53,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:54,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:55,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:56,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:58,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:58,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 2263 [2020-10-14 21:40:58,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 21:40:58,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5207 [2020-10-14 21:40:58,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:58,982 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:58,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 21:40:58,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2002 [2020-10-14 21:40:58,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 226 [2020-10-14 21:40:58,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:59,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:40:59,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:59,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:59,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:59,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:40:59,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:59,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:40:59,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:59,331 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:59,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:59,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:59,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:59,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:59,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:40:59,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:59,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:59,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:59,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 21:40:59,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:59,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 21:40:59,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:59,364 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:59,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:59,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:59,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:59,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:59,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 21:40:59,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:59,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:59,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:59,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 21:40:59,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:59,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 21:40:59,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:59,399 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:59,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:59,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:59,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:59,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:59,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-14 21:40:59,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:59,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:59,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:59,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-14 21:40:59,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:59,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 21:40:59,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:59,455 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:59,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:59,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:59,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:59,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:40:59,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-14 21:40:59,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:59,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:59,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:59,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-14 21:40:59,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:59,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 21:40:59,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:59,501 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:59,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:59,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:59,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:59,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:59,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-14 21:40:59,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:59,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:59,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:59,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-14 21:40:59,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:59,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-14 21:40:59,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:59,567 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:59,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:59,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:59,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:59,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:59,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-14 21:40:59,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:59,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:59,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:59,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 21:40:59,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:59,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 21:40:59,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:59,628 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:59,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:59,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:59,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:59,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:59,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-14 21:40:59,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:59,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:59,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:59,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-14 21:40:59,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:59,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 21:40:59,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:59,685 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:59,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:59,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:59,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:59,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:59,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-14 21:40:59,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:59,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:59,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:59,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-14 21:40:59,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:59,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 21:40:59,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:59,745 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:59,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:59,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:59,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:59,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:59,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-14 21:40:59,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:59,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:59,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:59,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-14 21:40:59,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:59,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 21:40:59,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:59,793 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:59,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:59,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:59,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:59,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:59,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-14 21:40:59,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:59,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:59,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:59,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-14 21:40:59,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:59,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-14 21:40:59,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:59,884 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:59,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:59,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:59,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:59,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:59,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-14 21:40:59,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:59,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:59,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:59,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-14 21:40:59,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:59,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 21:40:59,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:59,969 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:59,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:59,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:59,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:59,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:41:00,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1410 [2020-10-14 21:41:00,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:00,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:00,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:00,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-14 21:41:00,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:41:00,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 21:41:00,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:00,183 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:00,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:41:00,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:41:00,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:41:00,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:41:00,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1537 [2020-10-14 21:41:00,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:00,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:00,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:00,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-14 21:41:00,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:41:00,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 21:41:00,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:00,221 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:00,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:41:00,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:41:00,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:41:00,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:41:00,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1662 [2020-10-14 21:41:00,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:00,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:00,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:00,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-10-14 21:41:00,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:41:00,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 21:41:00,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:00,269 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:00,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:41:00,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:41:00,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:41:00,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:41:00,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1842 [2020-10-14 21:41:00,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:00,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:00,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:00,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-14 21:41:00,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:41:00,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-14 21:41:00,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:00,364 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:00,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:41:00,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:41:00,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-14 21:41:00,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:41:00,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1972 [2020-10-14 21:41:00,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:00,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:00,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:00,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-14 21:41:00,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:41:00,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 21:41:00,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:00,426 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:00,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:41:00,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:41:00,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-14 21:41:00,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:41:00,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2051 [2020-10-14 21:41:00,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:00,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:00,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:00,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-14 21:41:00,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:41:00,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-14 21:41:00,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:00,550 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:00,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 21:41:00,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:41:00,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-14 21:41:00,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:41:02,841 INFO L134 CoverageAnalysis]: Checked inductivity of 15499 backedges. 3697 proven. 59 refuted. 0 times theorem prover too weak. 11743 trivial. 0 not checked. [2020-10-14 21:41:02,841 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [621453056] [2020-10-14 21:41:02,842 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:41:02,842 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 21:41:02,842 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686753238] [2020-10-14 21:41:02,844 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 21:41:02,844 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:41:02,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 21:41:02,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-14 21:41:02,844 INFO L87 Difference]: Start difference. First operand 5908 states and 6115 transitions. Second operand 8 states. [2020-10-14 21:41:04,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:41:04,756 INFO L93 Difference]: Finished difference Result 12941 states and 13437 transitions. [2020-10-14 21:41:04,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 21:41:04,757 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 2221 [2020-10-14 21:41:04,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:41:04,766 INFO L225 Difference]: With dead ends: 12941 [2020-10-14 21:41:04,766 INFO L226 Difference]: Without dead ends: 7012 [2020-10-14 21:41:04,773 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 40 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-10-14 21:41:04,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7012 states. [2020-10-14 21:41:04,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7012 to 6464. [2020-10-14 21:41:04,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6464 states. [2020-10-14 21:41:04,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6464 states to 6464 states and 6660 transitions. [2020-10-14 21:41:04,848 INFO L78 Accepts]: Start accepts. Automaton has 6464 states and 6660 transitions. Word has length 2221 [2020-10-14 21:41:04,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:41:04,850 INFO L479 AbstractCegarLoop]: Abstraction has 6464 states and 6660 transitions. [2020-10-14 21:41:04,850 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 21:41:04,850 INFO L276 IsEmpty]: Start isEmpty. Operand 6464 states and 6660 transitions. [2020-10-14 21:41:04,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2480 [2020-10-14 21:41:04,904 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:41:04,906 INFO L422 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 18, 18, 18, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 13, 13, 13, 12, 12, 12, 12, 11, 10, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 7, 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, 4, 4, 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] [2020-10-14 21:41:04,906 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-14 21:41:04,906 INFO L427 AbstractCegarLoop]: === Iteration 25 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:41:04,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:41:04,907 INFO L82 PathProgramCache]: Analyzing trace with hash -1465294910, now seen corresponding path program 2 times [2020-10-14 21:41:04,907 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:41:04,907 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [17755223] [2020-10-14 21:41:04,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:41:05,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:05,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:06,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:07,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:10,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:10,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 2525 [2020-10-14 21:41:10,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 21:41:10,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5131 [2020-10-14 21:41:10,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:10,453 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:10,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 21:41:10,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2002 [2020-10-14 21:41:10,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 263 [2020-10-14 21:41:10,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:41:10,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:41:10,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:10,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:10,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:10,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:41:10,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:41:10,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:41:10,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:10,701 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:10,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:41:10,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:41:10,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:41:10,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:41:10,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:41:10,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:10,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:10,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:10,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 21:41:10,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:41:10,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 21:41:10,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:10,731 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:10,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:41:10,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:41:10,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:41:10,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:41:10,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 21:41:10,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:10,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:10,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:10,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 21:41:10,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:41:10,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 21:41:10,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:10,763 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:10,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:41:10,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:41:10,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:41:10,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:41:10,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-14 21:41:10,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:10,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:10,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:10,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-14 21:41:10,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:41:10,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 21:41:10,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:10,794 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:10,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:41:10,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:41:10,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:41:10,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:41:10,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-14 21:41:10,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:10,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:10,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:10,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-14 21:41:10,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:41:10,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 21:41:10,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:10,821 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:10,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:41:10,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:41:10,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:41:10,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:41:10,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-14 21:41:10,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:10,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:10,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:10,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-14 21:41:10,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:41:10,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 21:41:10,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:10,869 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:10,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:41:10,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:41:10,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:41:10,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:41:10,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-14 21:41:10,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:10,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:10,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:10,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 21:41:10,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:41:10,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 21:41:10,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:10,913 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:10,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:41:10,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:41:10,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:41:10,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:41:10,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-14 21:41:10,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:10,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:10,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:10,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-14 21:41:10,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:41:10,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-14 21:41:10,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:10,959 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:10,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:41:10,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:41:10,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:41:10,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:41:11,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-14 21:41:11,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:11,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:11,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:11,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-14 21:41:11,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:41:11,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 21:41:11,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:11,031 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:11,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:41:11,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:41:11,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:41:11,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:41:11,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-14 21:41:11,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:11,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:11,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:11,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-14 21:41:11,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:41:11,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 21:41:11,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:11,087 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:11,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:41:11,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:41:11,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:41:11,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:41:11,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-14 21:41:11,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:11,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:11,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:11,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-14 21:41:11,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:41:11,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-14 21:41:11,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:11,152 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:11,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:41:11,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:41:11,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:41:11,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:41:11,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-14 21:41:11,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:11,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:11,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:11,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-14 21:41:11,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:41:11,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 21:41:11,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:11,249 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:11,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:41:11,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:41:11,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:41:11,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:41:11,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1410 [2020-10-14 21:41:11,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:11,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:11,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:11,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-14 21:41:11,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:41:11,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 21:41:11,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:11,303 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:11,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:41:11,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:41:11,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:41:11,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:41:11,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1537 [2020-10-14 21:41:11,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:11,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:11,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:11,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-14 21:41:11,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:41:11,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 21:41:11,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:11,356 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:11,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:41:11,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:41:11,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:41:11,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:41:11,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1662 [2020-10-14 21:41:11,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:11,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:11,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:11,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-10-14 21:41:11,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:41:11,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 21:41:11,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:11,422 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:11,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:41:11,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:41:11,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:41:11,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:41:11,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1842 [2020-10-14 21:41:11,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:11,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:11,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:11,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-14 21:41:11,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:41:11,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-14 21:41:11,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:11,530 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:11,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:41:11,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:41:11,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-14 21:41:11,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:41:11,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1972 [2020-10-14 21:41:11,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:11,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:11,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:11,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:11,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-14 21:41:11,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:41:11,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-14 21:41:11,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:11,614 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:11,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:41:11,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:41:11,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-14 21:41:11,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:41:11,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2051 [2020-10-14 21:41:11,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:11,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:11,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:11,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-14 21:41:11,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:41:11,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-14 21:41:11,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:11,758 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:11,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:41:11,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:41:11,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-14 21:41:11,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:41:11,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2230 [2020-10-14 21:41:11,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:11,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:11,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:11,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-14 21:41:11,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:41:11,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 21:41:11,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:11,878 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:11,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:41:11,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-10-14 21:41:11,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:41:11,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:41:11,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2309 [2020-10-14 21:41:11,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:11,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:11,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:11,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-14 21:41:11,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:41:11,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 21:41:11,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:11,932 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:11,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:41:11,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 117 [2020-10-14 21:41:11,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:41:11,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:41:14,860 INFO L134 CoverageAnalysis]: Checked inductivity of 19180 backedges. 3261 proven. 200 refuted. 0 times theorem prover too weak. 15719 trivial. 0 not checked. [2020-10-14 21:41:14,860 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [17755223] [2020-10-14 21:41:14,860 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:41:14,861 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 21:41:14,861 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812429023] [2020-10-14 21:41:14,862 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 21:41:14,863 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:41:14,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 21:41:14,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-14 21:41:14,863 INFO L87 Difference]: Start difference. First operand 6464 states and 6660 transitions. Second operand 8 states. [2020-10-14 21:41:16,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:41:16,852 INFO L93 Difference]: Finished difference Result 10156 states and 10424 transitions. [2020-10-14 21:41:16,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 21:41:16,853 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 2479 [2020-10-14 21:41:16,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:41:16,855 INFO L225 Difference]: With dead ends: 10156 [2020-10-14 21:41:16,856 INFO L226 Difference]: Without dead ends: 0 [2020-10-14 21:41:16,863 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-10-14 21:41:16,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-14 21:41:16,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-14 21:41:16,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-14 21:41:16,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-14 21:41:16,865 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 2479 [2020-10-14 21:41:16,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:41:16,865 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-14 21:41:16,865 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 21:41:16,865 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-14 21:41:16,865 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-14 21:41:16,865 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-14 21:41:16,867 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-14 21:41:18,012 WARN L193 SmtUtils]: Spent 403.00 ms on a formula simplification. DAG size of input: 325 DAG size of output: 231 [2020-10-14 21:41:18,244 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 325 DAG size of output: 231 [2020-10-14 21:41:22,430 WARN L193 SmtUtils]: Spent 4.07 s on a formula simplification. DAG size of input: 381 DAG size of output: 169 [2020-10-14 21:41:24,816 WARN L193 SmtUtils]: Spent 2.35 s on a formula simplification. DAG size of input: 215 DAG size of output: 115