/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem04_label32.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 01:05:25,398 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 01:05:25,400 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 01:05:25,440 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 01:05:25,441 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 01:05:25,448 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 01:05:25,450 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 01:05:25,453 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 01:05:25,456 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 01:05:25,458 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 01:05:25,459 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 01:05:25,460 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 01:05:25,460 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 01:05:25,463 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 01:05:25,465 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 01:05:25,467 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 01:05:25,468 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 01:05:25,469 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 01:05:25,470 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 01:05:25,478 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 01:05:25,480 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 01:05:25,480 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 01:05:25,481 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 01:05:25,482 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 01:05:25,494 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 01:05:25,494 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 01:05:25,494 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 01:05:25,498 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 01:05:25,499 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 01:05:25,499 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 01:05:25,500 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 01:05:25,500 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 01:05:25,501 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 01:05:25,504 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 01:05:25,505 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 01:05:25,505 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 01:05:25,505 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 01:05:25,506 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 01:05:25,506 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 01:05:25,509 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 01:05:25,509 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 01:05:25,513 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 01:05:25,546 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 01:05:25,546 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 01:05:25,548 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 01:05:25,548 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 01:05:25,548 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 01:05:25,549 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 01:05:25,549 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 01:05:25,549 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 01:05:25,549 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 01:05:25,549 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 01:05:25,550 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 01:05:25,551 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 01:05:25,551 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 01:05:25,551 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 01:05:25,552 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 01:05:25,552 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 01:05:25,552 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 01:05:25,553 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 01:05:25,553 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 01:05:25,553 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 01:05:25,553 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 01:05:25,554 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 01:05:25,554 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 01:05:25,554 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 01:05:25,554 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 01:05:25,554 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 01:05:25,554 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 01:05:25,555 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 01:05:25,555 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 01:05:25,555 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 01:05:25,875 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 01:05:25,887 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 01:05:25,891 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 01:05:25,892 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 01:05:25,892 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 01:05:25,893 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem04_label32.c [2020-10-14 01:05:25,962 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e93fd8610/e6c7b576cf304712b268fa4939660db4/FLAG03a4ed535 [2020-10-14 01:05:26,711 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 01:05:26,712 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem04_label32.c [2020-10-14 01:05:26,750 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e93fd8610/e6c7b576cf304712b268fa4939660db4/FLAG03a4ed535 [2020-10-14 01:05:26,791 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e93fd8610/e6c7b576cf304712b268fa4939660db4 [2020-10-14 01:05:26,801 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 01:05:26,803 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 01:05:26,806 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 01:05:26,806 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 01:05:26,810 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 01:05:26,811 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 01:05:26" (1/1) ... [2020-10-14 01:05:26,814 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26f88baa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:05:26, skipping insertion in model container [2020-10-14 01:05:26,814 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 01:05:26" (1/1) ... [2020-10-14 01:05:26,823 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 01:05:26,976 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 01:05:28,357 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 01:05:28,364 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 01:05:28,947 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 01:05:28,977 INFO L208 MainTranslator]: Completed translation [2020-10-14 01:05:28,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:05:28 WrapperNode [2020-10-14 01:05:28,978 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 01:05:28,978 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 01:05:28,978 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 01:05:28,979 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 01:05:28,992 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:05:28" (1/1) ... [2020-10-14 01:05:28,993 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:05:28" (1/1) ... [2020-10-14 01:05:29,036 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:05:28" (1/1) ... [2020-10-14 01:05:29,036 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:05:28" (1/1) ... [2020-10-14 01:05:29,138 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:05:28" (1/1) ... [2020-10-14 01:05:29,174 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:05:28" (1/1) ... [2020-10-14 01:05:29,211 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:05:28" (1/1) ... [2020-10-14 01:05:29,253 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 01:05:29,253 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 01:05:29,254 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 01:05:29,254 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 01:05:29,255 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:05:28" (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 01:05:29,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 01:05:29,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 01:05:29,329 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 01:05:29,330 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-14 01:05:29,330 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2020-10-14 01:05:29,330 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2020-10-14 01:05:29,330 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 01:05:29,331 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 01:05:29,331 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-14 01:05:29,332 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2020-10-14 01:05:29,332 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2020-10-14 01:05:29,332 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 01:05:29,332 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 01:05:29,332 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 01:05:29,333 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 01:05:29,333 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 01:05:29,334 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 01:05:33,340 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 01:05:33,341 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 01:05:33,351 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 01:05:33 BoogieIcfgContainer [2020-10-14 01:05:33,351 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 01:05:33,353 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 01:05:33,353 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 01:05:33,356 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 01:05:33,356 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 01:05:26" (1/3) ... [2020-10-14 01:05:33,357 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19aaa0fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 01:05:33, skipping insertion in model container [2020-10-14 01:05:33,357 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:05:28" (2/3) ... [2020-10-14 01:05:33,358 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19aaa0fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 01:05:33, skipping insertion in model container [2020-10-14 01:05:33,358 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 01:05:33" (3/3) ... [2020-10-14 01:05:33,359 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem04_label32.c [2020-10-14 01:05:33,370 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 01:05:33,378 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 01:05:33,392 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 01:05:33,418 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 01:05:33,418 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 01:05:33,418 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 01:05:33,418 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 01:05:33,419 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 01:05:33,419 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 01:05:33,419 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 01:05:33,419 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 01:05:33,455 INFO L276 IsEmpty]: Start isEmpty. Operand 906 states. [2020-10-14 01:05:33,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 785 [2020-10-14 01:05:33,495 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 01:05:33,497 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:05:33,497 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 01:05:33,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 01:05:33,505 INFO L82 PathProgramCache]: Analyzing trace with hash -1193309517, now seen corresponding path program 1 times [2020-10-14 01:05:33,515 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 01:05:33,515 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [483219688] [2020-10-14 01:05:33,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 01:05:34,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:05:34,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:05:37,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:05:39,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:05:39,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 798 [2020-10-14 01:05:39,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 01:05:39,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5072 [2020-10-14 01:05:39,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:05:39,226 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:05:39,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-14 01:05:39,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 01:05:39,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 792 [2020-10-14 01:05:39,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 01:05:40,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 01:05:40,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:05:40,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:05:40,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:05:40,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 01:05:40,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:05:40,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 01:05:40,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:05:40,153 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:05:40,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 01:05:40,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:05:40,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 01:05:40,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:05:40,980 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 01:05:40,981 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [483219688] [2020-10-14 01:05:40,983 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 01:05:40,983 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 01:05:40,984 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449224138] [2020-10-14 01:05:40,991 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 01:05:40,991 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 01:05:41,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 01:05:41,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 01:05:41,003 INFO L87 Difference]: Start difference. First operand 906 states. Second operand 4 states. [2020-10-14 01:05:49,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 01:05:49,006 INFO L93 Difference]: Finished difference Result 2672 states and 5138 transitions. [2020-10-14 01:05:49,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 01:05:49,008 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 784 [2020-10-14 01:05:49,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 01:05:49,046 INFO L225 Difference]: With dead ends: 2672 [2020-10-14 01:05:49,046 INFO L226 Difference]: Without dead ends: 1702 [2020-10-14 01:05:49,058 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 01:05:49,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1702 states. [2020-10-14 01:05:49,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1702 to 1687. [2020-10-14 01:05:49,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1687 states. [2020-10-14 01:05:49,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1687 states to 1687 states and 2973 transitions. [2020-10-14 01:05:49,214 INFO L78 Accepts]: Start accepts. Automaton has 1687 states and 2973 transitions. Word has length 784 [2020-10-14 01:05:49,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 01:05:49,216 INFO L479 AbstractCegarLoop]: Abstraction has 1687 states and 2973 transitions. [2020-10-14 01:05:49,216 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 01:05:49,217 INFO L276 IsEmpty]: Start isEmpty. Operand 1687 states and 2973 transitions. [2020-10-14 01:05:49,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 794 [2020-10-14 01:05:49,253 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 01:05:49,253 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:05:49,254 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 01:05:49,254 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 01:05:49,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 01:05:49,255 INFO L82 PathProgramCache]: Analyzing trace with hash -644843368, now seen corresponding path program 1 times [2020-10-14 01:05:49,255 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 01:05:49,255 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [895097661] [2020-10-14 01:05:49,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 01:05:49,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:05:49,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:05:50,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:05:54,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:05:54,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:05:54,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 809 [2020-10-14 01:05:54,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 01:05:54,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5110 [2020-10-14 01:05:54,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:05:54,431 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:05:54,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 01:05:54,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 01:05:54,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 01:05:54,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 01:05:54,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 01:05:54,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:05:54,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:05:54,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:05:54,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 01:05:54,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:05:54,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 01:05:54,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:05:54,685 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:05:54,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 01:05:54,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:05:54,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 01:05:54,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:05:54,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 01:05:54,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:05:54,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:05:54,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:05:54,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 01:05:54,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:05:54,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 01:05:54,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:05:54,724 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:05:54,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:05:54,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 01:05:54,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 01:05:54,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:05:55,052 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 01:05:55,053 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [895097661] [2020-10-14 01:05:55,053 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 01:05:55,053 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 01:05:55,054 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233685438] [2020-10-14 01:05:55,056 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 01:05:55,057 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 01:05:55,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 01:05:55,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 01:05:55,057 INFO L87 Difference]: Start difference. First operand 1687 states and 2973 transitions. Second operand 7 states. [2020-10-14 01:06:04,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 01:06:04,017 INFO L93 Difference]: Finished difference Result 5160 states and 9152 transitions. [2020-10-14 01:06:04,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 01:06:04,017 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 793 [2020-10-14 01:06:04,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 01:06:04,042 INFO L225 Difference]: With dead ends: 5160 [2020-10-14 01:06:04,043 INFO L226 Difference]: Without dead ends: 3479 [2020-10-14 01:06:04,048 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 01:06:04,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3479 states. [2020-10-14 01:06:04,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3479 to 3418. [2020-10-14 01:06:04,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3418 states. [2020-10-14 01:06:04,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3418 states to 3418 states and 5742 transitions. [2020-10-14 01:06:04,155 INFO L78 Accepts]: Start accepts. Automaton has 3418 states and 5742 transitions. Word has length 793 [2020-10-14 01:06:04,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 01:06:04,155 INFO L479 AbstractCegarLoop]: Abstraction has 3418 states and 5742 transitions. [2020-10-14 01:06:04,155 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 01:06:04,156 INFO L276 IsEmpty]: Start isEmpty. Operand 3418 states and 5742 transitions. [2020-10-14 01:06:04,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 806 [2020-10-14 01:06:04,186 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 01:06:04,187 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:06:04,187 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 01:06:04,187 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 01:06:04,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 01:06:04,188 INFO L82 PathProgramCache]: Analyzing trace with hash -181380096, now seen corresponding path program 1 times [2020-10-14 01:06:04,188 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 01:06:04,189 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [125644683] [2020-10-14 01:06:04,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 01:06:04,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:06:04,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:06:05,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:06:09,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:06:09,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 821 [2020-10-14 01:06:09,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 01:06:09,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5056 [2020-10-14 01:06:09,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:06:09,310 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:06:09,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 01:06:09,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 01:06:09,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-14 01:06:09,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:06:09,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 01:06:09,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:06:09,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:06:09,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:06:09,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 01:06:09,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:06:09,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 01:06:09,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:06:09,642 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:06:09,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 01:06:09,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:06:09,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 01:06:09,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:06:09,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 01:06:09,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:06:09,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:06:09,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:06:09,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 01:06:09,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:06:09,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-14 01:06:09,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:06:09,730 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:06:09,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:06:09,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 01:06:09,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-14 01:06:09,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:06:10,589 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 01:06:10,589 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [125644683] [2020-10-14 01:06:10,590 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 01:06:10,590 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 01:06:10,591 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558119958] [2020-10-14 01:06:10,593 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 01:06:10,593 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 01:06:10,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 01:06:10,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 01:06:10,594 INFO L87 Difference]: Start difference. First operand 3418 states and 5742 transitions. Second operand 8 states. [2020-10-14 01:06:23,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 01:06:23,992 INFO L93 Difference]: Finished difference Result 13938 states and 24257 transitions. [2020-10-14 01:06:23,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 01:06:23,995 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 805 [2020-10-14 01:06:23,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 01:06:24,049 INFO L225 Difference]: With dead ends: 13938 [2020-10-14 01:06:24,050 INFO L226 Difference]: Without dead ends: 10526 [2020-10-14 01:06:24,061 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-10-14 01:06:24,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10526 states. [2020-10-14 01:06:24,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10526 to 10479. [2020-10-14 01:06:24,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10479 states. [2020-10-14 01:06:24,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10479 states to 10479 states and 16078 transitions. [2020-10-14 01:06:24,384 INFO L78 Accepts]: Start accepts. Automaton has 10479 states and 16078 transitions. Word has length 805 [2020-10-14 01:06:24,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 01:06:24,388 INFO L479 AbstractCegarLoop]: Abstraction has 10479 states and 16078 transitions. [2020-10-14 01:06:24,388 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 01:06:24,389 INFO L276 IsEmpty]: Start isEmpty. Operand 10479 states and 16078 transitions. [2020-10-14 01:06:24,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 999 [2020-10-14 01:06:24,443 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 01:06:24,444 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:06:24,445 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 01:06:24,445 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 01:06:24,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 01:06:24,446 INFO L82 PathProgramCache]: Analyzing trace with hash -829888732, now seen corresponding path program 1 times [2020-10-14 01:06:24,446 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 01:06:24,447 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [881121997] [2020-10-14 01:06:24,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 01:06:24,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:06:24,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:06:24,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:06:24,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:06:25,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:06:29,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:06:29,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1018 [2020-10-14 01:06:29,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 01:06:29,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-14 01:06:29,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:06:29,584 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:06:29,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:06:29,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 100 [2020-10-14 01:06:29,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 129 [2020-10-14 01:06:29,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:06:29,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 01:06:29,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:06:29,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:06:29,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:06:29,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 01:06:29,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:06:29,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 01:06:29,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:06:29,786 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:06:29,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:06:29,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:06:29,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:06:29,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:06:29,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 01:06:29,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:06:29,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:06:29,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:06:29,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-14 01:06:29,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:06:29,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 01:06:29,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:06:29,819 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:06:29,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:06:29,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:06:29,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:06:29,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:06:29,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-14 01:06:29,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:06:29,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:06:29,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:06:29,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-14 01:06:29,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:06:29,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-14 01:06:29,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:06:29,910 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:06:29,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 01:06:29,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:06:29,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-14 01:06:29,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:06:29,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-14 01:06:29,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:06:29,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:06:30,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:06:30,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-14 01:06:30,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:06:30,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 179 [2020-10-14 01:06:30,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:06:30,153 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:06:30,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:06:30,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 01:06:30,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-14 01:06:30,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:06:30,715 INFO L134 CoverageAnalysis]: Checked inductivity of 319 backedges. 292 proven. 2 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-10-14 01:06:30,716 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [881121997] [2020-10-14 01:06:30,716 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 01:06:30,716 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 01:06:30,717 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527045981] [2020-10-14 01:06:30,718 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 01:06:30,718 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 01:06:30,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 01:06:30,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 01:06:30,719 INFO L87 Difference]: Start difference. First operand 10479 states and 16078 transitions. Second operand 7 states. [2020-10-14 01:06:46,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 01:06:46,399 INFO L93 Difference]: Finished difference Result 40876 states and 68069 transitions. [2020-10-14 01:06:46,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 01:06:46,400 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 998 [2020-10-14 01:06:46,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 01:06:46,545 INFO L225 Difference]: With dead ends: 40876 [2020-10-14 01:06:46,546 INFO L226 Difference]: Without dead ends: 30403 [2020-10-14 01:06:46,588 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 01:06:46,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30403 states. [2020-10-14 01:06:47,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30403 to 30348. [2020-10-14 01:06:47,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30348 states. [2020-10-14 01:06:47,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30348 states to 30348 states and 43261 transitions. [2020-10-14 01:06:47,381 INFO L78 Accepts]: Start accepts. Automaton has 30348 states and 43261 transitions. Word has length 998 [2020-10-14 01:06:47,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 01:06:47,382 INFO L479 AbstractCegarLoop]: Abstraction has 30348 states and 43261 transitions. [2020-10-14 01:06:47,383 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 01:06:47,383 INFO L276 IsEmpty]: Start isEmpty. Operand 30348 states and 43261 transitions. [2020-10-14 01:06:47,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1003 [2020-10-14 01:06:47,505 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 01:06:47,506 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:06:47,507 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 01:06:47,507 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 01:06:47,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 01:06:47,507 INFO L82 PathProgramCache]: Analyzing trace with hash 1816864586, now seen corresponding path program 1 times [2020-10-14 01:06:47,508 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 01:06:47,508 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1468592651] [2020-10-14 01:06:47,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 01:06:47,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:06:47,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:06:47,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:06:48,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:06:51,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:06:52,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:06:52,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1022 [2020-10-14 01:06:52,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 01:06:52,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5033 [2020-10-14 01:06:52,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:06:52,666 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:06:52,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:06:52,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-14 01:06:52,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-14 01:06:52,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:06:52,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 01:06:52,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:06:52,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:06:52,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:06:52,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 01:06:52,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:06:52,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 01:06:52,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:06:52,958 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:06:52,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:06:52,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:06:52,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:06:52,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:06:52,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 01:06:52,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:06:52,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:06:53,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:06:53,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-14 01:06:53,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:06:53,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 01:06:53,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:06:53,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:06:53,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 01:06:53,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:06:53,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-14 01:06:53,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:06:53,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-14 01:06:53,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:06:53,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:06:53,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:06:53,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 01:06:53,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:06:53,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-10-14 01:06:53,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:06:53,143 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:06:53,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:06:53,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 01:06:53,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-14 01:06:53,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:06:53,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-14 01:06:53,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:06:53,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:06:53,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:06:53,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-14 01:06:53,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:06:53,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-14 01:06:53,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:06:53,273 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:06:53,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:06:53,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-10-14 01:06:53,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:06:53,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:06:53,702 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 229 proven. 72 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-10-14 01:06:53,702 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1468592651] [2020-10-14 01:06:53,702 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 01:06:53,703 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 01:06:53,703 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812693931] [2020-10-14 01:06:53,704 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 01:06:53,704 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 01:06:53,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 01:06:53,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 01:06:53,704 INFO L87 Difference]: Start difference. First operand 30348 states and 43261 transitions. Second operand 7 states. [2020-10-14 01:07:10,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 01:07:10,199 INFO L93 Difference]: Finished difference Result 109705 states and 173039 transitions. [2020-10-14 01:07:10,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 01:07:10,200 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1002 [2020-10-14 01:07:10,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 01:07:10,550 INFO L225 Difference]: With dead ends: 109705 [2020-10-14 01:07:10,550 INFO L226 Difference]: Without dead ends: 79363 [2020-10-14 01:07:10,675 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 01:07:10,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79363 states. [2020-10-14 01:07:12,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79363 to 79324. [2020-10-14 01:07:12,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79324 states. [2020-10-14 01:07:12,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79324 states to 79324 states and 119434 transitions. [2020-10-14 01:07:12,545 INFO L78 Accepts]: Start accepts. Automaton has 79324 states and 119434 transitions. Word has length 1002 [2020-10-14 01:07:12,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 01:07:12,545 INFO L479 AbstractCegarLoop]: Abstraction has 79324 states and 119434 transitions. [2020-10-14 01:07:12,546 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 01:07:12,546 INFO L276 IsEmpty]: Start isEmpty. Operand 79324 states and 119434 transitions. [2020-10-14 01:07:12,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1036 [2020-10-14 01:07:12,784 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 01:07:12,785 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:07:12,785 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 01:07:12,785 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 01:07:12,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 01:07:12,786 INFO L82 PathProgramCache]: Analyzing trace with hash -1869450093, now seen corresponding path program 1 times [2020-10-14 01:07:12,786 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 01:07:12,787 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [338560626] [2020-10-14 01:07:12,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 01:07:12,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:07:13,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:07:13,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:07:14,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:07:17,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:07:17,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1053 [2020-10-14 01:07:17,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 01:07:17,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5035 [2020-10-14 01:07:17,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:07:17,978 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:07:17,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:07:17,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-10-14 01:07:17,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 129 [2020-10-14 01:07:17,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:07:18,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 01:07:18,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:07:18,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:07:18,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:07:18,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 01:07:18,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:07:18,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 01:07:18,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:07:18,175 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:07:18,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:07:18,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:07:18,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:07:18,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:07:18,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 01:07:18,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:07:18,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:07:18,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:07:18,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-14 01:07:18,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:07:18,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-10-14 01:07:18,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:07:18,316 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:07:18,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 01:07:18,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:07:18,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-14 01:07:18,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:07:18,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-14 01:07:18,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:07:18,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:07:18,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:07:18,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-14 01:07:18,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:07:18,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-14 01:07:18,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:07:18,473 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:07:18,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:07:18,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 01:07:18,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-14 01:07:18,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:07:19,090 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 367 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 01:07:19,090 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [338560626] [2020-10-14 01:07:19,090 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 01:07:19,091 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 01:07:19,091 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350214639] [2020-10-14 01:07:19,092 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 01:07:19,092 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 01:07:19,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 01:07:19,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 01:07:19,093 INFO L87 Difference]: Start difference. First operand 79324 states and 119434 transitions. Second operand 7 states. [2020-10-14 01:07:30,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 01:07:30,345 INFO L93 Difference]: Finished difference Result 205272 states and 313341 transitions. [2020-10-14 01:07:30,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 01:07:30,346 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1035 [2020-10-14 01:07:30,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 01:07:30,936 INFO L225 Difference]: With dead ends: 205272 [2020-10-14 01:07:30,936 INFO L226 Difference]: Without dead ends: 125958 [2020-10-14 01:07:31,216 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-14 01:07:31,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125958 states. [2020-10-14 01:07:35,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125958 to 112417. [2020-10-14 01:07:35,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112417 states. [2020-10-14 01:07:36,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112417 states to 112417 states and 157340 transitions. [2020-10-14 01:07:36,128 INFO L78 Accepts]: Start accepts. Automaton has 112417 states and 157340 transitions. Word has length 1035 [2020-10-14 01:07:36,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 01:07:36,129 INFO L479 AbstractCegarLoop]: Abstraction has 112417 states and 157340 transitions. [2020-10-14 01:07:36,129 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 01:07:36,129 INFO L276 IsEmpty]: Start isEmpty. Operand 112417 states and 157340 transitions. [2020-10-14 01:07:36,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1444 [2020-10-14 01:07:36,352 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 01:07:36,353 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:07:36,353 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 01:07:36,353 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 01:07:36,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 01:07:36,354 INFO L82 PathProgramCache]: Analyzing trace with hash 486454109, now seen corresponding path program 1 times [2020-10-14 01:07:36,354 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 01:07:36,355 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1037198751] [2020-10-14 01:07:36,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 01:07:36,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:07:36,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:07:36,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:07:36,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:07:36,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:07:37,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:07:41,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:07:41,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1469 [2020-10-14 01:07:41,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 01:07:41,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5046 [2020-10-14 01:07:41,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:07:41,514 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:07:41,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:07:41,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 205 [2020-10-14 01:07:41,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-14 01:07:41,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:07:41,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 01:07:41,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:07:41,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:07:41,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:07:41,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 01:07:41,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:07:41,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 01:07:41,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:07:41,811 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:07:41,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:07:41,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:07:41,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:07:41,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:07:41,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 01:07:41,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:07:41,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:07:41,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:07:41,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-14 01:07:41,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:07:41,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 01:07:41,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:07:41,861 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:07:41,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:07:41,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:07:41,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:07:41,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:07:41,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-14 01:07:41,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:07:41,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:07:41,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:07:41,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-10-14 01:07:41,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:07:41,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 01:07:41,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:07:41,936 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:07:41,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 01:07:41,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:07:41,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-14 01:07:41,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:07:41,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2020-10-14 01:07:41,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:07:41,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:07:42,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:07:42,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-14 01:07:42,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:07:42,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 387 [2020-10-14 01:07:42,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:07:42,365 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:07:42,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:07:42,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 01:07:42,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-10-14 01:07:42,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:07:42,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2020-10-14 01:07:42,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:07:42,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:07:42,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:07:42,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-10-14 01:07:42,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:07:42,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 01:07:42,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:07:42,448 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:07:42,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:07:42,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-10-14 01:07:42,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:07:42,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:07:42,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 396 [2020-10-14 01:07:42,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:07:42,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:07:42,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:07:42,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 146 [2020-10-14 01:07:42,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:07:42,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-14 01:07:42,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:07:42,519 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:07:42,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:07:42,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 143 [2020-10-14 01:07:42,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:07:42,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:07:42,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 541 [2020-10-14 01:07:42,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:07:42,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:07:42,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:07:42,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-14 01:07:42,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:07:42,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 01:07:42,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:07:42,601 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:07:42,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:07:42,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-10-14 01:07:42,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:07:42,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:07:43,590 INFO L134 CoverageAnalysis]: Checked inductivity of 1955 backedges. 857 proven. 314 refuted. 0 times theorem prover too weak. 784 trivial. 0 not checked. [2020-10-14 01:07:43,591 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1037198751] [2020-10-14 01:07:43,591 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 01:07:43,591 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 01:07:43,591 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128954717] [2020-10-14 01:07:43,593 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 01:07:43,593 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 01:07:43,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 01:07:43,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 01:07:43,594 INFO L87 Difference]: Start difference. First operand 112417 states and 157340 transitions. Second operand 7 states. [2020-10-14 01:07:55,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 01:07:55,003 INFO L93 Difference]: Finished difference Result 260943 states and 372002 transitions. [2020-10-14 01:07:55,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 01:07:55,003 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1443 [2020-10-14 01:07:55,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 01:07:55,645 INFO L225 Difference]: With dead ends: 260943 [2020-10-14 01:07:55,645 INFO L226 Difference]: Without dead ends: 143552 [2020-10-14 01:07:55,903 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 01:07:56,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143552 states. [2020-10-14 01:08:01,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143552 to 143394. [2020-10-14 01:08:01,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143394 states. [2020-10-14 01:08:01,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143394 states to 143394 states and 200066 transitions. [2020-10-14 01:08:01,480 INFO L78 Accepts]: Start accepts. Automaton has 143394 states and 200066 transitions. Word has length 1443 [2020-10-14 01:08:01,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 01:08:01,480 INFO L479 AbstractCegarLoop]: Abstraction has 143394 states and 200066 transitions. [2020-10-14 01:08:01,480 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 01:08:01,480 INFO L276 IsEmpty]: Start isEmpty. Operand 143394 states and 200066 transitions. [2020-10-14 01:08:01,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1476 [2020-10-14 01:08:01,772 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 01:08:01,773 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:08:01,773 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 01:08:01,773 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 01:08:01,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 01:08:01,774 INFO L82 PathProgramCache]: Analyzing trace with hash -1729727874, now seen corresponding path program 1 times [2020-10-14 01:08:01,774 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 01:08:01,774 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [722810247] [2020-10-14 01:08:01,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 01:08:01,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:08:01,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:08:02,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:08:02,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:08:02,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:08:02,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:08:03,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:08:06,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:08:06,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1499 [2020-10-14 01:08:06,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 01:08:06,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5078 [2020-10-14 01:08:06,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:08:06,975 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:08:06,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:08:06,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-10-14 01:08:06,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 179 [2020-10-14 01:08:06,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:08:07,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 01:08:07,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:08:07,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:08:07,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:08:07,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 01:08:07,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:08:07,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 01:08:07,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:08:07,150 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:08:07,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:08:07,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:08:07,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:08:07,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:08:07,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 01:08:07,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:08:07,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:08:07,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:08:07,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-14 01:08:07,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:08:07,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-14 01:08:07,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:08:07,244 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:08:07,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 01:08:07,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:08:07,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-14 01:08:07,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:08:07,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-14 01:08:07,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:08:07,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:08:07,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:08:07,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 177 [2020-10-14 01:08:07,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:08:07,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 148 [2020-10-14 01:08:07,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:08:07,442 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:08:07,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:08:07,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 01:08:07,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 177 [2020-10-14 01:08:07,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:08:07,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2020-10-14 01:08:07,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:08:07,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:08:07,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:08:07,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-14 01:08:07,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:08:07,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 01:08:07,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:08:07,563 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:08:07,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:08:07,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 117 [2020-10-14 01:08:07,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:08:07,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:08:07,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 428 [2020-10-14 01:08:07,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:08:07,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:08:08,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:08:08,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 146 [2020-10-14 01:08:08,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:08:08,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-14 01:08:08,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:08:08,015 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:08:08,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:08:08,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 143 [2020-10-14 01:08:08,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:08:08,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:08:08,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 573 [2020-10-14 01:08:08,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:08:08,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:08:08,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:08:08,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-14 01:08:08,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:08:08,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-14 01:08:08,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:08:08,133 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:08:08,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:08:08,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-10-14 01:08:08,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:08:08,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:08:09,258 INFO L134 CoverageAnalysis]: Checked inductivity of 1924 backedges. 810 proven. 383 refuted. 0 times theorem prover too weak. 731 trivial. 0 not checked. [2020-10-14 01:08:09,258 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [722810247] [2020-10-14 01:08:09,258 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 01:08:09,259 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 01:08:09,259 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915023354] [2020-10-14 01:08:09,260 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 01:08:09,260 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 01:08:09,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 01:08:09,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 01:08:09,261 INFO L87 Difference]: Start difference. First operand 143394 states and 200066 transitions. Second operand 7 states. [2020-10-14 01:08:20,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 01:08:20,809 INFO L93 Difference]: Finished difference Result 289649 states and 404788 transitions. [2020-10-14 01:08:20,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 01:08:20,810 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1475 [2020-10-14 01:08:20,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 01:08:21,433 INFO L225 Difference]: With dead ends: 289649 [2020-10-14 01:08:21,433 INFO L226 Difference]: Without dead ends: 143714 [2020-10-14 01:08:22,599 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 01:08:22,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143714 states. [2020-10-14 01:08:24,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143714 to 141907. [2020-10-14 01:08:24,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141907 states. [2020-10-14 01:08:24,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141907 states to 141907 states and 179703 transitions. [2020-10-14 01:08:24,345 INFO L78 Accepts]: Start accepts. Automaton has 141907 states and 179703 transitions. Word has length 1475 [2020-10-14 01:08:24,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 01:08:24,346 INFO L479 AbstractCegarLoop]: Abstraction has 141907 states and 179703 transitions. [2020-10-14 01:08:24,346 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 01:08:24,346 INFO L276 IsEmpty]: Start isEmpty. Operand 141907 states and 179703 transitions. [2020-10-14 01:08:28,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1553 [2020-10-14 01:08:28,919 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 01:08:28,920 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, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:08:28,920 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 01:08:28,920 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 01:08:28,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 01:08:28,921 INFO L82 PathProgramCache]: Analyzing trace with hash -1957447401, now seen corresponding path program 1 times [2020-10-14 01:08:28,921 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 01:08:28,921 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [671322608] [2020-10-14 01:08:28,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 01:08:29,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:08:29,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:08:29,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:08:29,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:08:29,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:08:34,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:08:34,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1578 [2020-10-14 01:08:34,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 01:08:34,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-10-14 01:08:34,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:08:34,063 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:08:34,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:08:34,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-10-14 01:08:34,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 01:08:34,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:08:34,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 01:08:34,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:08:34,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:08:34,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:08:34,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 01:08:34,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:08:34,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 01:08:34,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:08:34,251 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:08:34,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:08:34,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:08:34,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:08:34,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:08:34,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 01:08:34,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:08:34,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:08:34,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:08:34,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-14 01:08:34,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:08:34,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-14 01:08:34,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:08:34,348 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:08:34,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 01:08:34,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:08:34,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-14 01:08:34,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:08:34,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-14 01:08:34,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:08:34,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:08:34,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:08:34,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-10-14 01:08:34,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:08:34,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-14 01:08:34,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:08:34,433 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:08:34,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:08:34,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 01:08:34,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-14 01:08:34,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:08:34,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2020-10-14 01:08:34,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:08:34,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:08:34,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:08:34,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-14 01:08:34,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:08:34,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 01:08:34,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:08:34,494 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:08:34,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:08:34,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-10-14 01:08:34,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:08:34,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:08:34,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2020-10-14 01:08:34,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:08:34,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:08:34,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:08:34,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 518 [2020-10-14 01:08:34,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:08:34,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 185 [2020-10-14 01:08:34,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:08:34,775 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:08:34,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:08:34,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 515 [2020-10-14 01:08:34,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:08:34,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:08:34,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 01:08:34,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:08:34,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:08:34,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:08:34,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 291 [2020-10-14 01:08:34,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:08:34,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-14 01:08:34,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:08:34,907 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:08:34,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:08:34,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:08:34,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:08:34,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:08:34,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 01:08:34,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:08:34,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:08:34,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:08:34,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-14 01:08:34,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:08:34,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 01:08:34,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:08:34,982 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:08:34,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:08:34,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:08:34,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:08:34,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:08:36,137 INFO L134 CoverageAnalysis]: Checked inductivity of 1197 backedges. 823 proven. 126 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2020-10-14 01:08:36,138 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [671322608] [2020-10-14 01:08:36,138 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 01:08:36,138 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 01:08:36,139 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204133240] [2020-10-14 01:08:36,140 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 01:08:36,141 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 01:08:36,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 01:08:36,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 01:08:36,141 INFO L87 Difference]: Start difference. First operand 141907 states and 179703 transitions. Second operand 7 states. [2020-10-14 01:08:47,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 01:08:47,465 INFO L93 Difference]: Finished difference Result 277036 states and 349217 transitions. [2020-10-14 01:08:47,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 01:08:47,465 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1552 [2020-10-14 01:08:47,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 01:08:47,848 INFO L225 Difference]: With dead ends: 277036 [2020-10-14 01:08:47,848 INFO L226 Difference]: Without dead ends: 135275 [2020-10-14 01:08:48,064 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 01:08:48,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135275 states. [2020-10-14 01:08:50,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135275 to 131611. [2020-10-14 01:08:50,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131611 states. [2020-10-14 01:08:50,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131611 states to 131611 states and 154966 transitions. [2020-10-14 01:08:50,224 INFO L78 Accepts]: Start accepts. Automaton has 131611 states and 154966 transitions. Word has length 1552 [2020-10-14 01:08:50,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 01:08:50,224 INFO L479 AbstractCegarLoop]: Abstraction has 131611 states and 154966 transitions. [2020-10-14 01:08:50,224 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 01:08:50,224 INFO L276 IsEmpty]: Start isEmpty. Operand 131611 states and 154966 transitions. [2020-10-14 01:08:50,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1830 [2020-10-14 01:08:50,351 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 01:08:50,352 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 01:08:50,352 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 01:08:50,353 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 01:08:50,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 01:08:50,353 INFO L82 PathProgramCache]: Analyzing trace with hash 536795783, now seen corresponding path program 1 times [2020-10-14 01:08:50,354 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 01:08:50,354 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [96817233] [2020-10-14 01:08:50,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 01:08:50,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:08:50,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:08:51,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:08:51,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:08:52,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:08:52,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking...