/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 SingleStatement --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=0.6 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label32.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 06:47:31,391 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 06:47:31,396 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 06:47:31,446 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 06:47:31,446 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 06:47:31,457 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 06:47:31,458 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 06:47:31,462 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 06:47:31,466 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 06:47:31,469 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 06:47:31,472 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 06:47:31,473 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 06:47:31,474 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 06:47:31,477 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 06:47:31,480 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 06:47:31,483 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 06:47:31,484 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 06:47:31,486 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 06:47:31,488 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 06:47:31,497 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 06:47:31,499 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 06:47:31,500 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 06:47:31,504 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 06:47:31,505 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 06:47:31,508 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 06:47:31,508 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 06:47:31,509 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 06:47:31,511 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 06:47:31,512 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 06:47:31,513 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 06:47:31,514 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 06:47:31,514 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 06:47:31,515 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 06:47:31,516 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 06:47:31,517 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 06:47:31,518 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 06:47:31,518 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 06:47:31,519 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 06:47:31,519 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 06:47:31,520 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 06:47:31,521 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 06:47:31,522 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 [2020-09-25 06:47:31,573 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 06:47:31,573 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 06:47:31,575 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 06:47:31,576 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 06:47:31,576 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 06:47:31,576 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 06:47:31,577 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 06:47:31,577 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 06:47:31,577 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 06:47:31,577 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 06:47:31,578 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 06:47:31,579 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 06:47:31,579 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 06:47:31,579 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 06:47:31,579 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 06:47:31,580 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 06:47:31,580 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 06:47:31,580 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 06:47:31,580 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 06:47:31,581 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 06:47:31,581 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 06:47:31,581 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 06:47:31,581 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 06:47:31,581 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 06:47:31,582 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 06:47:31,582 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 06:47:31,582 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 06:47:31,582 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 06:47:31,582 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 06:47:31,583 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 -> SingleStatement 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=0.6;log-additional-information=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=0.6;log-additional-information=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=0.6;log-additional-information=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=0.6;log-additional-information=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=0.6;log-additional-information=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=0.6;log-additional-information=true; [2020-09-25 06:47:32,039 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 06:47:32,057 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 06:47:32,061 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 06:47:32,063 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 06:47:32,063 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 06:47:32,064 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label32.c [2020-09-25 06:47:32,157 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/956bfbf3d/937e5ff72e7d4c25a4df23121896e894/FLAGe33678efb [2020-09-25 06:47:32,807 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 06:47:32,808 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem10_label32.c [2020-09-25 06:47:32,829 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/956bfbf3d/937e5ff72e7d4c25a4df23121896e894/FLAGe33678efb [2020-09-25 06:47:33,145 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/956bfbf3d/937e5ff72e7d4c25a4df23121896e894 [2020-09-25 06:47:33,159 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 06:47:33,165 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 06:47:33,166 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 06:47:33,167 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 06:47:33,172 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 06:47:33,173 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:47:33" (1/1) ... [2020-09-25 06:47:33,178 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@548345a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:47:33, skipping insertion in model container [2020-09-25 06:47:33,178 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:47:33" (1/1) ... [2020-09-25 06:47:33,187 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 06:47:33,239 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 06:47:33,861 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:47:33,867 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 06:47:34,009 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:47:34,037 INFO L208 MainTranslator]: Completed translation [2020-09-25 06:47:34,038 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:47:34 WrapperNode [2020-09-25 06:47:34,038 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 06:47:34,039 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 06:47:34,039 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 06:47:34,039 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 06:47:34,054 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:47:34" (1/1) ... [2020-09-25 06:47:34,055 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:47:34" (1/1) ... [2020-09-25 06:47:34,075 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:47:34" (1/1) ... [2020-09-25 06:47:34,075 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:47:34" (1/1) ... [2020-09-25 06:47:34,111 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:47:34" (1/1) ... [2020-09-25 06:47:34,145 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:47:34" (1/1) ... [2020-09-25 06:47:34,159 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:47:34" (1/1) ... [2020-09-25 06:47:34,174 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 06:47:34,174 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 06:47:34,175 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 06:47:34,175 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 06:47:34,177 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:47:34" (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 [2020-09-25 06:47:34,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 06:47:34,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 06:47:34,267 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-09-25 06:47:34,267 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 06:47:34,267 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-09-25 06:47:34,268 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 06:47:34,268 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 06:47:34,268 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-25 06:47:34,268 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 06:47:34,268 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 06:47:34,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 06:47:35,724 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 06:47:35,724 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 06:47:35,733 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:47:35 BoogieIcfgContainer [2020-09-25 06:47:35,733 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 06:47:35,734 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 06:47:35,734 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 06:47:35,738 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 06:47:35,739 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 06:47:33" (1/3) ... [2020-09-25 06:47:35,740 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a94b3f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:47:35, skipping insertion in model container [2020-09-25 06:47:35,740 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:47:34" (2/3) ... [2020-09-25 06:47:35,740 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a94b3f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:47:35, skipping insertion in model container [2020-09-25 06:47:35,741 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:47:35" (3/3) ... [2020-09-25 06:47:35,743 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label32.c [2020-09-25 06:47:35,755 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 06:47:35,767 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 06:47:35,790 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 06:47:35,826 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 06:47:35,826 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 06:47:35,827 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 06:47:35,827 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 06:47:35,827 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 06:47:35,827 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 06:47:35,827 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 06:47:35,827 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 06:47:35,859 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states. [2020-09-25 06:47:35,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-09-25 06:47:35,869 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:47:35,871 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] [2020-09-25 06:47:35,871 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:47:35,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:47:35,879 INFO L82 PathProgramCache]: Analyzing trace with hash -1927363665, now seen corresponding path program 1 times [2020-09-25 06:47:35,891 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:47:35,891 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1317381443] [2020-09-25 06:47:35,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:47:36,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:47:36,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:47:36,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:47:36,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:47:36,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-25 06:47:36,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:47:36,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 679 [2020-09-25 06:47:36,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:47:36,744 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:47:36,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:47:36,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 06:47:36,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-09-25 06:47:36,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 06:47:36,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:47:36,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:47:36,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:47:36,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:47:36,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 06:47:36,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:47:36,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 06:47:36,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:47:36,938 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:47:36,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:47:36,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:47:36,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 06:47:36,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:47:36,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:47:36,965 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1317381443] [2020-09-25 06:47:36,968 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:47:36,968 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 06:47:36,970 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203800435] [2020-09-25 06:47:36,978 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 06:47:36,979 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:47:36,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 06:47:36,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 06:47:37,002 INFO L87 Difference]: Start difference. First operand 456 states. Second operand 4 states. [2020-09-25 06:47:39,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:47:39,059 INFO L93 Difference]: Finished difference Result 1069 states and 1495 transitions. [2020-09-25 06:47:39,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 06:47:39,061 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 44 [2020-09-25 06:47:39,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:47:39,085 INFO L225 Difference]: With dead ends: 1069 [2020-09-25 06:47:39,085 INFO L226 Difference]: Without dead ends: 555 [2020-09-25 06:47:39,096 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 06:47:39,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2020-09-25 06:47:39,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 543. [2020-09-25 06:47:39,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 543 states. [2020-09-25 06:47:39,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 670 transitions. [2020-09-25 06:47:39,234 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 670 transitions. Word has length 44 [2020-09-25 06:47:39,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:47:39,235 INFO L479 AbstractCegarLoop]: Abstraction has 543 states and 670 transitions. [2020-09-25 06:47:39,237 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 06:47:39,237 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 670 transitions. [2020-09-25 06:47:39,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-09-25 06:47:39,258 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:47:39,258 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:47:39,260 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 06:47:39,261 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:47:39,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:47:39,261 INFO L82 PathProgramCache]: Analyzing trace with hash -739682472, now seen corresponding path program 1 times [2020-09-25 06:47:39,262 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:47:39,262 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [790741491] [2020-09-25 06:47:39,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:47:39,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:47:39,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:47:39,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:47:39,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:47:39,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:47:40,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:47:41,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:47:41,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-09-25 06:47:41,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 06:47:41,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1725 [2020-09-25 06:47:41,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:47:41,042 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:47:41,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:47:41,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 06:47:41,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-25 06:47:41,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:47:41,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:47:41,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:47:41,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:47:41,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:47:41,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 06:47:41,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:47:41,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 06:47:41,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:47:41,133 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:47:41,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:47:41,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:47:41,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:47:41,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:47:41,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 06:47:41,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:47:41,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:47:41,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:47:41,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-25 06:47:41,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:47:41,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 163 [2020-09-25 06:47:41,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:47:41,344 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:47:41,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:47:41,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 06:47:41,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 06:47:41,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:47:41,478 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:47:41,479 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [790741491] [2020-09-25 06:47:41,479 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:47:41,480 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 06:47:41,480 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904931433] [2020-09-25 06:47:41,483 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 06:47:41,483 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:47:41,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 06:47:41,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-25 06:47:41,484 INFO L87 Difference]: Start difference. First operand 543 states and 670 transitions. Second operand 7 states. [2020-09-25 06:47:43,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:47:43,643 INFO L93 Difference]: Finished difference Result 1258 states and 1571 transitions. [2020-09-25 06:47:43,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 06:47:43,645 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 124 [2020-09-25 06:47:43,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:47:43,650 INFO L225 Difference]: With dead ends: 1258 [2020-09-25 06:47:43,650 INFO L226 Difference]: Without dead ends: 730 [2020-09-25 06:47:43,653 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-09-25 06:47:43,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 730 states. [2020-09-25 06:47:43,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 730 to 699. [2020-09-25 06:47:43,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 699 states. [2020-09-25 06:47:43,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 855 transitions. [2020-09-25 06:47:43,683 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 855 transitions. Word has length 124 [2020-09-25 06:47:43,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:47:43,684 INFO L479 AbstractCegarLoop]: Abstraction has 699 states and 855 transitions. [2020-09-25 06:47:43,684 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 06:47:43,684 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 855 transitions. [2020-09-25 06:47:43,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-09-25 06:47:43,687 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:47:43,687 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:47:43,687 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 06:47:43,688 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:47:43,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:47:43,688 INFO L82 PathProgramCache]: Analyzing trace with hash -1991578147, now seen corresponding path program 1 times [2020-09-25 06:47:43,688 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:47:43,689 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [639713559] [2020-09-25 06:47:43,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:47:43,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:47:43,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:47:43,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:47:44,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:47:44,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:47:44,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:47:45,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:47:46,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:47:46,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:47:48,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:47:48,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-09-25 06:47:48,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 06:47:48,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4378 [2020-09-25 06:47:48,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:47:48,115 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:47:48,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:47:48,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 103 [2020-09-25 06:47:48,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-09-25 06:47:48,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:47:48,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:47:48,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:47:48,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:47:48,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:47:48,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 06:47:48,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:47:48,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 06:47:48,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:47:48,238 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:47:48,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:47:48,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:47:48,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:47:48,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:47:48,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 06:47:48,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:47:48,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:47:48,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:47:48,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:47:48,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:47:48,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 172 [2020-09-25 06:47:48,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:47:48,450 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:47:48,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 06:47:48,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:47:48,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 06:47:48,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:47:48,514 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 27 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:47:48,514 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [639713559] [2020-09-25 06:47:48,515 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 06:47:48,515 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-25 06:47:48,515 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311056909] [2020-09-25 06:47:48,517 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 06:47:48,518 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:47:48,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 06:47:48,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 06:47:48,519 INFO L87 Difference]: Start difference. First operand 699 states and 855 transitions. Second operand 6 states. [2020-09-25 06:47:51,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:47:51,232 INFO L93 Difference]: Finished difference Result 1925 states and 2517 transitions. [2020-09-25 06:47:51,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 06:47:51,233 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 133 [2020-09-25 06:47:51,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:47:51,247 INFO L225 Difference]: With dead ends: 1925 [2020-09-25 06:47:51,247 INFO L226 Difference]: Without dead ends: 1391 [2020-09-25 06:47:51,250 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-09-25 06:47:51,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1391 states. [2020-09-25 06:47:51,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1391 to 1335. [2020-09-25 06:47:51,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1335 states. [2020-09-25 06:47:51,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1335 states to 1335 states and 1725 transitions. [2020-09-25 06:47:51,321 INFO L78 Accepts]: Start accepts. Automaton has 1335 states and 1725 transitions. Word has length 133 [2020-09-25 06:47:51,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:47:51,327 INFO L479 AbstractCegarLoop]: Abstraction has 1335 states and 1725 transitions. [2020-09-25 06:47:51,328 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 06:47:51,328 INFO L276 IsEmpty]: Start isEmpty. Operand 1335 states and 1725 transitions. [2020-09-25 06:47:51,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-09-25 06:47:51,335 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:47:51,335 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:47:51,335 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 06:47:51,335 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:47:51,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:47:51,336 INFO L82 PathProgramCache]: Analyzing trace with hash -1945552283, now seen corresponding path program 1 times [2020-09-25 06:47:51,336 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:47:51,337 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1986539020] [2020-09-25 06:47:51,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:47:51,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:47:51,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:47:51,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:47:51,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:47:51,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:47:52,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:47:54,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:47:54,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 146 [2020-09-25 06:47:54,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 06:47:54,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2859 [2020-09-25 06:47:54,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:47:54,233 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:47:54,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:47:54,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-25 06:47:54,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-09-25 06:47:54,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:47:54,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:47:54,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:47:54,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:47:54,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:47:54,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 06:47:54,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:47:54,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 06:47:54,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:47:54,310 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:47:54,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:47:54,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:47:54,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 06:47:54,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:47:54,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 06:47:54,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:47:54,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:47:54,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:47:54,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-09-25 06:47:54,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:47:54,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 135 [2020-09-25 06:47:54,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:47:54,478 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:47:54,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:47:54,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 06:47:54,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-25 06:47:54,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:47:54,552 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:47:54,553 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1986539020] [2020-09-25 06:47:54,553 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:47:54,553 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 06:47:54,553 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430024681] [2020-09-25 06:47:54,554 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 06:47:54,554 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:47:54,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 06:47:54,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-25 06:47:54,555 INFO L87 Difference]: Start difference. First operand 1335 states and 1725 transitions. Second operand 7 states. [2020-09-25 06:47:56,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:47:56,878 INFO L93 Difference]: Finished difference Result 3351 states and 4564 transitions. [2020-09-25 06:47:56,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 06:47:56,879 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 135 [2020-09-25 06:47:56,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:47:56,894 INFO L225 Difference]: With dead ends: 3351 [2020-09-25 06:47:56,894 INFO L226 Difference]: Without dead ends: 2181 [2020-09-25 06:47:56,906 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-09-25 06:47:56,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2181 states. [2020-09-25 06:47:56,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2181 to 1825. [2020-09-25 06:47:56,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1825 states. [2020-09-25 06:47:56,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1825 states to 1825 states and 2298 transitions. [2020-09-25 06:47:56,981 INFO L78 Accepts]: Start accepts. Automaton has 1825 states and 2298 transitions. Word has length 135 [2020-09-25 06:47:56,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:47:56,982 INFO L479 AbstractCegarLoop]: Abstraction has 1825 states and 2298 transitions. [2020-09-25 06:47:56,982 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 06:47:56,982 INFO L276 IsEmpty]: Start isEmpty. Operand 1825 states and 2298 transitions. [2020-09-25 06:47:56,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2020-09-25 06:47:56,986 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:47:56,987 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:47:56,987 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 06:47:56,987 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:47:56,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:47:56,988 INFO L82 PathProgramCache]: Analyzing trace with hash -718653912, now seen corresponding path program 1 times [2020-09-25 06:47:56,988 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:47:56,988 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1349487956] [2020-09-25 06:47:56,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:47:57,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:47:57,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:47:57,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:47:57,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:47:57,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:47:58,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:47:59,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:47:59,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:47:59,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:00,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:48:00,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-09-25 06:48:00,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 06:48:00,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3824 [2020-09-25 06:48:00,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:48:00,856 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:48:00,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:48:00,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 96 [2020-09-25 06:48:00,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-09-25 06:48:00,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:48:00,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:48:00,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:48:00,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:00,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:48:00,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 06:48:00,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:48:00,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 06:48:00,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:48:00,943 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:48:00,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:48:00,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:48:00,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:48:00,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:48:00,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 06:48:00,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:48:00,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:01,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:48:01,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-09-25 06:48:01,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:48:01,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-09-25 06:48:01,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:48:01,043 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:48:01,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:48:01,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:48:01,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-09-25 06:48:01,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:48:01,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 06:48:01,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:48:01,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:01,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:01,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:48:01,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-25 06:48:01,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:48:01,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-09-25 06:48:01,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:48:01,215 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:48:01,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:48:01,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:48:01,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-09-25 06:48:01,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:48:01,308 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 56 proven. 12 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2020-09-25 06:48:01,309 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1349487956] [2020-09-25 06:48:01,309 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 06:48:01,309 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 06:48:01,309 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716086] [2020-09-25 06:48:01,310 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 06:48:01,310 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:48:01,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 06:48:01,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-25 06:48:01,311 INFO L87 Difference]: Start difference. First operand 1825 states and 2298 transitions. Second operand 7 states. [2020-09-25 06:48:04,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:48:04,521 INFO L93 Difference]: Finished difference Result 5346 states and 7570 transitions. [2020-09-25 06:48:04,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 06:48:04,522 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 203 [2020-09-25 06:48:04,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:48:04,547 INFO L225 Difference]: With dead ends: 5346 [2020-09-25 06:48:04,547 INFO L226 Difference]: Without dead ends: 3686 [2020-09-25 06:48:04,555 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2020-09-25 06:48:04,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3686 states. [2020-09-25 06:48:04,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3686 to 3358. [2020-09-25 06:48:04,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3358 states. [2020-09-25 06:48:04,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3358 states to 3358 states and 4564 transitions. [2020-09-25 06:48:04,676 INFO L78 Accepts]: Start accepts. Automaton has 3358 states and 4564 transitions. Word has length 203 [2020-09-25 06:48:04,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:48:04,677 INFO L479 AbstractCegarLoop]: Abstraction has 3358 states and 4564 transitions. [2020-09-25 06:48:04,677 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 06:48:04,677 INFO L276 IsEmpty]: Start isEmpty. Operand 3358 states and 4564 transitions. [2020-09-25 06:48:04,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2020-09-25 06:48:04,692 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:48:04,693 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:48:04,693 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 06:48:04,693 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:48:04,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:48:04,693 INFO L82 PathProgramCache]: Analyzing trace with hash 355866237, now seen corresponding path program 1 times [2020-09-25 06:48:04,694 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:48:04,694 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1046093282] [2020-09-25 06:48:04,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:48:04,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:48:04,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:04,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:05,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:09,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:48:09,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 353 [2020-09-25 06:48:09,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 06:48:09,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5073 [2020-09-25 06:48:09,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:48:09,823 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:48:09,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:48:09,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 183 [2020-09-25 06:48:09,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-09-25 06:48:09,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:48:09,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:48:09,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:48:09,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:09,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:48:09,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 06:48:09,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:48:09,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 06:48:09,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:48:09,968 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:48:09,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:48:09,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:48:09,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:48:09,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:48:09,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 06:48:09,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:48:09,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:10,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:48:10,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-09-25 06:48:10,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:48:10,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-25 06:48:10,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:48:10,037 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:48:10,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:48:10,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:48:10,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:48:10,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:48:10,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 06:48:10,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:48:10,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:10,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:48:10,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-09-25 06:48:10,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:48:10,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-09-25 06:48:10,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:48:10,188 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:48:10,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:48:10,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:48:10,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 06:48:10,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:48:10,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2020-09-25 06:48:10,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:48:10,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:10,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:48:10,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-09-25 06:48:10,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:48:10,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 297 [2020-09-25 06:48:10,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:48:10,566 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:48:10,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:48:10,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 06:48:10,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-09-25 06:48:10,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:48:10,771 INFO L134 CoverageAnalysis]: Checked inductivity of 319 backedges. 244 proven. 2 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2020-09-25 06:48:10,771 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1046093282] [2020-09-25 06:48:10,772 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 06:48:10,772 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 06:48:10,773 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107140211] [2020-09-25 06:48:10,773 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 06:48:10,774 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:48:10,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 06:48:10,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-25 06:48:10,774 INFO L87 Difference]: Start difference. First operand 3358 states and 4564 transitions. Second operand 7 states. [2020-09-25 06:48:13,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:48:13,517 INFO L93 Difference]: Finished difference Result 7048 states and 9661 transitions. [2020-09-25 06:48:13,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 06:48:13,519 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 338 [2020-09-25 06:48:13,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:48:13,541 INFO L225 Difference]: With dead ends: 7048 [2020-09-25 06:48:13,541 INFO L226 Difference]: Without dead ends: 3855 [2020-09-25 06:48:13,553 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-09-25 06:48:13,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3855 states. [2020-09-25 06:48:13,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3855 to 3820. [2020-09-25 06:48:13,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3820 states. [2020-09-25 06:48:13,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3820 states to 3820 states and 5136 transitions. [2020-09-25 06:48:13,657 INFO L78 Accepts]: Start accepts. Automaton has 3820 states and 5136 transitions. Word has length 338 [2020-09-25 06:48:13,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:48:13,657 INFO L479 AbstractCegarLoop]: Abstraction has 3820 states and 5136 transitions. [2020-09-25 06:48:13,657 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 06:48:13,658 INFO L276 IsEmpty]: Start isEmpty. Operand 3820 states and 5136 transitions. [2020-09-25 06:48:13,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2020-09-25 06:48:13,674 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:48:13,675 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:48:13,675 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 06:48:13,675 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:48:13,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:48:13,676 INFO L82 PathProgramCache]: Analyzing trace with hash -52877573, now seen corresponding path program 1 times [2020-09-25 06:48:13,676 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:48:13,676 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1886676343] [2020-09-25 06:48:13,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:48:13,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:48:13,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:14,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:15,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:15,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:15,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:19,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:48:19,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 363 [2020-09-25 06:48:19,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 06:48:19,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5276 [2020-09-25 06:48:19,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:48:19,012 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:48:19,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:48:19,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 96 [2020-09-25 06:48:19,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-25 06:48:19,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:48:19,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:48:19,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:48:19,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:19,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:48:19,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 06:48:19,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:48:19,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 06:48:19,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:48:19,083 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:48:19,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:48:19,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:48:19,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:48:19,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:48:19,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 06:48:19,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:48:19,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:19,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:48:19,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-09-25 06:48:19,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:48:19,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-09-25 06:48:19,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:48:19,185 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:48:19,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:48:19,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:48:19,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-09-25 06:48:19,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:48:19,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 06:48:19,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:48:19,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:19,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:48:19,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-25 06:48:19,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:48:19,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 191 [2020-09-25 06:48:19,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:48:19,411 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:48:19,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:48:19,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 06:48:19,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-09-25 06:48:19,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:48:19,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2020-09-25 06:48:19,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:48:19,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:19,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:48:19,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-09-25 06:48:19,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:48:19,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-09-25 06:48:19,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:48:19,581 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:48:19,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:48:19,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 122 [2020-09-25 06:48:19,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:48:19,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:48:19,705 INFO L134 CoverageAnalysis]: Checked inductivity of 329 backedges. 167 proven. 86 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2020-09-25 06:48:19,706 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1886676343] [2020-09-25 06:48:19,706 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 06:48:19,707 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 06:48:19,709 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498399348] [2020-09-25 06:48:19,710 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 06:48:19,710 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:48:19,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 06:48:19,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-25 06:48:19,711 INFO L87 Difference]: Start difference. First operand 3820 states and 5136 transitions. Second operand 7 states.