/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --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/Problem01_label43.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 11:14:22,786 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 11:14:22,791 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 11:14:22,839 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 11:14:22,840 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 11:14:22,851 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 11:14:22,853 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 11:14:22,858 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 11:14:22,861 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 11:14:22,865 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 11:14:22,866 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 11:14:22,867 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 11:14:22,867 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 11:14:22,871 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 11:14:22,875 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 11:14:22,878 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 11:14:22,880 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 11:14:22,881 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 11:14:22,883 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 11:14:22,891 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 11:14:22,893 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 11:14:22,894 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 11:14:22,895 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 11:14:22,896 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 11:14:22,901 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 11:14:22,901 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 11:14:22,902 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 11:14:22,905 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 11:14:22,905 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 11:14:22,907 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 11:14:22,907 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 11:14:22,908 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 11:14:22,909 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 11:14:22,910 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 11:14:22,912 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 11:14:22,912 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 11:14:22,913 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 11:14:22,913 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 11:14:22,913 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 11:14:22,915 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 11:14:22,916 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 11:14:22,917 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 11:14:22,965 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 11:14:22,965 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 11:14:22,968 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 11:14:22,968 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 11:14:22,969 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 11:14:22,969 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 11:14:22,969 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 11:14:22,970 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 11:14:22,970 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 11:14:22,970 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 11:14:22,971 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 11:14:22,971 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 11:14:22,972 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 11:14:22,972 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 11:14:22,972 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 11:14:22,972 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 11:14:22,973 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 11:14:22,973 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 11:14:22,973 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 11:14:22,973 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 11:14:22,973 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 11:14:22,974 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 11:14:22,974 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 11:14:22,974 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 11:14:22,974 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 11:14:22,975 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 11:14:22,975 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 11:14:22,975 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 11:14:22,975 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 11:14:22,975 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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; [2020-09-25 11:14:23,436 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 11:14:23,463 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 11:14:23,468 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 11:14:23,469 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 11:14:23,470 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 11:14:23,471 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label43.c [2020-09-25 11:14:23,562 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6038062ff/27bbc4419b8a4aef9d30f2acc359b85d/FLAGfa93a33c4 [2020-09-25 11:14:24,200 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 11:14:24,201 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label43.c [2020-09-25 11:14:24,215 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6038062ff/27bbc4419b8a4aef9d30f2acc359b85d/FLAGfa93a33c4 [2020-09-25 11:14:24,433 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6038062ff/27bbc4419b8a4aef9d30f2acc359b85d [2020-09-25 11:14:24,449 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 11:14:24,455 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 11:14:24,456 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 11:14:24,457 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 11:14:24,461 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 11:14:24,462 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:14:24" (1/1) ... [2020-09-25 11:14:24,466 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@245d8fce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:14:24, skipping insertion in model container [2020-09-25 11:14:24,467 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:14:24" (1/1) ... [2020-09-25 11:14:24,476 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 11:14:24,530 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 11:14:25,031 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 11:14:25,039 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 11:14:25,242 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 11:14:25,263 INFO L208 MainTranslator]: Completed translation [2020-09-25 11:14:25,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:14:25 WrapperNode [2020-09-25 11:14:25,264 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 11:14:25,265 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 11:14:25,265 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 11:14:25,265 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 11:14:25,284 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:14:25" (1/1) ... [2020-09-25 11:14:25,285 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:14:25" (1/1) ... [2020-09-25 11:14:25,305 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:14:25" (1/1) ... [2020-09-25 11:14:25,305 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:14:25" (1/1) ... [2020-09-25 11:14:25,348 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:14:25" (1/1) ... [2020-09-25 11:14:25,366 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:14:25" (1/1) ... [2020-09-25 11:14:25,374 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:14:25" (1/1) ... [2020-09-25 11:14:25,386 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 11:14:25,386 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 11:14:25,386 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 11:14:25,391 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 11:14:25,392 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:14:25" (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 11:14:25,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 11:14:25,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 11:14:25,513 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-09-25 11:14:25,513 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 11:14:25,513 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-09-25 11:14:25,513 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 11:14:25,514 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 11:14:25,515 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-25 11:14:25,516 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 11:14:25,516 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 11:14:25,516 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 11:14:27,332 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 11:14:27,333 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 11:14:27,342 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:14:27 BoogieIcfgContainer [2020-09-25 11:14:27,342 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 11:14:27,343 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 11:14:27,343 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 11:14:27,347 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 11:14:27,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 11:14:24" (1/3) ... [2020-09-25 11:14:27,353 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68751017 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 11:14:27, skipping insertion in model container [2020-09-25 11:14:27,353 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:14:25" (2/3) ... [2020-09-25 11:14:27,353 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68751017 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 11:14:27, skipping insertion in model container [2020-09-25 11:14:27,353 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:14:27" (3/3) ... [2020-09-25 11:14:27,358 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label43.c [2020-09-25 11:14:27,369 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 11:14:27,380 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 11:14:27,402 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 11:14:27,437 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 11:14:27,437 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 11:14:27,437 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 11:14:27,437 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 11:14:27,437 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 11:14:27,438 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 11:14:27,438 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 11:14:27,438 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 11:14:27,475 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states. [2020-09-25 11:14:27,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-25 11:14:27,513 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:14:27,514 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] [2020-09-25 11:14:27,515 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:14:27,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:14:27,522 INFO L82 PathProgramCache]: Analyzing trace with hash 1333625535, now seen corresponding path program 1 times [2020-09-25 11:14:27,533 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:14:27,534 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [866462069] [2020-09-25 11:14:27,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:14:27,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:14:27,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:14:28,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:14:28,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:14:29,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:14:29,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:14:30,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:14:32,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:14:32,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:14:32,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 165 [2020-09-25 11:14:32,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 11:14:32,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-09-25 11:14:32,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:14:32,909 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:14:32,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 11:14:32,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-25 11:14:32,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-09-25 11:14:32,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 11:14:33,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:14:33,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:14:33,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:14:33,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:14:33,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 11:14:33,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:14:33,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-25 11:14:33,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:14:33,208 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:14:33,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:14:33,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:14:33,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-25 11:14:33,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 11:14:33,298 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 11:14:33,299 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [866462069] [2020-09-25 11:14:33,301 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:14:33,302 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 11:14:33,303 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639678542] [2020-09-25 11:14:33,311 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 11:14:33,311 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:14:33,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 11:14:33,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 11:14:33,332 INFO L87 Difference]: Start difference. First operand 525 states. Second operand 4 states. [2020-09-25 11:14:35,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:14:35,488 INFO L93 Difference]: Finished difference Result 1231 states and 1630 transitions. [2020-09-25 11:14:35,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 11:14:35,491 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 156 [2020-09-25 11:14:35,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:14:35,517 INFO L225 Difference]: With dead ends: 1231 [2020-09-25 11:14:35,517 INFO L226 Difference]: Without dead ends: 657 [2020-09-25 11:14:35,528 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 1 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 11:14:35,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 657 states. [2020-09-25 11:14:35,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 657 to 603. [2020-09-25 11:14:35,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 603 states. [2020-09-25 11:14:35,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 707 transitions. [2020-09-25 11:14:35,642 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 707 transitions. Word has length 156 [2020-09-25 11:14:35,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:14:35,644 INFO L479 AbstractCegarLoop]: Abstraction has 603 states and 707 transitions. [2020-09-25 11:14:35,644 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 11:14:35,644 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 707 transitions. [2020-09-25 11:14:35,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-25 11:14:35,652 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:14:35,653 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-25 11:14:35,653 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 11:14:35,653 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:14:35,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:14:35,654 INFO L82 PathProgramCache]: Analyzing trace with hash -531931122, now seen corresponding path program 1 times [2020-09-25 11:14:35,654 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:14:35,655 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [713018113] [2020-09-25 11:14:35,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:14:35,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:14:35,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:14:35,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:14:36,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:14:36,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:14:37,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:14:37,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:14:37,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:14:39,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:14:39,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:14:40,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:14:40,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:14:40,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:14:40,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 188 [2020-09-25 11:14:40,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-09-25 11:14:40,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5219 [2020-09-25 11:14:40,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:14:40,929 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:14:40,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 11:14:40,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-09-25 11:14:40,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 140 [2020-09-25 11:14:40,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:14:41,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:14:41,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:14:41,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:14:41,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:14:41,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 11:14:41,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:14:41,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 11:14:41,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:14:41,069 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:14:41,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:14:41,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:14:41,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:14:41,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:14:41,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-09-25 11:14:41,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:14:41,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:14:41,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:14:41,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 11:14:41,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:14:41,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 11:14:41,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:14:41,120 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:14:41,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:14:41,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:14:41,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 11:14:41,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:14:41,163 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 11:14:41,164 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [713018113] [2020-09-25 11:14:41,164 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 11:14:41,164 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-25 11:14:41,165 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898203724] [2020-09-25 11:14:41,167 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 11:14:41,167 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:14:41,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 11:14:41,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 11:14:41,168 INFO L87 Difference]: Start difference. First operand 603 states and 707 transitions. Second operand 5 states. [2020-09-25 11:14:43,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:14:43,470 INFO L93 Difference]: Finished difference Result 1412 states and 1698 transitions. [2020-09-25 11:14:43,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 11:14:43,471 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 177 [2020-09-25 11:14:43,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:14:43,479 INFO L225 Difference]: With dead ends: 1412 [2020-09-25 11:14:43,479 INFO L226 Difference]: Without dead ends: 833 [2020-09-25 11:14:43,482 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-09-25 11:14:43,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 833 states. [2020-09-25 11:14:43,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 833 to 748. [2020-09-25 11:14:43,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 748 states. [2020-09-25 11:14:43,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 748 states to 748 states and 893 transitions. [2020-09-25 11:14:43,522 INFO L78 Accepts]: Start accepts. Automaton has 748 states and 893 transitions. Word has length 177 [2020-09-25 11:14:43,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:14:43,523 INFO L479 AbstractCegarLoop]: Abstraction has 748 states and 893 transitions. [2020-09-25 11:14:43,523 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 11:14:43,523 INFO L276 IsEmpty]: Start isEmpty. Operand 748 states and 893 transitions. [2020-09-25 11:14:43,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-09-25 11:14:43,528 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:14:43,528 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-25 11:14:43,529 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 11:14:43,529 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:14:43,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:14:43,529 INFO L82 PathProgramCache]: Analyzing trace with hash 1245795533, now seen corresponding path program 1 times [2020-09-25 11:14:43,530 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:14:43,530 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [639312950] [2020-09-25 11:14:43,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:14:43,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:14:43,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:14:43,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:14:43,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:14:44,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:14:44,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:14:47,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:14:48,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:14:48,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-09-25 11:14:48,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 11:14:48,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-09-25 11:14:48,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:14:48,596 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:14:48,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 11:14:48,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 45 [2020-09-25 11:14:48,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-09-25 11:14:48,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:14:48,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:14:48,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:14:48,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:14:48,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:14:48,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 11:14:48,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:14:48,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 11:14:48,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:14:48,751 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:14:48,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:14:48,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:14:48,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:14:48,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:14:48,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-09-25 11:14:48,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:14:48,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:14:48,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:14:48,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 11:14:48,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:14:48,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 11:14:48,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:14:48,812 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:14:48,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:14:48,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:14:48,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:14:48,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:14:48,882 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 11:14:48,882 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [639312950] [2020-09-25 11:14:48,883 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 11:14:48,883 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-25 11:14:48,883 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890762739] [2020-09-25 11:14:48,884 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 11:14:48,885 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:14:48,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 11:14:48,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 11:14:48,886 INFO L87 Difference]: Start difference. First operand 748 states and 893 transitions. Second operand 5 states. [2020-09-25 11:14:51,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:14:51,242 INFO L93 Difference]: Finished difference Result 2026 states and 2495 transitions. [2020-09-25 11:14:51,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 11:14:51,243 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 178 [2020-09-25 11:14:51,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:14:51,252 INFO L225 Difference]: With dead ends: 2026 [2020-09-25 11:14:51,252 INFO L226 Difference]: Without dead ends: 1302 [2020-09-25 11:14:51,255 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-09-25 11:14:51,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1302 states. [2020-09-25 11:14:51,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1302 to 1187. [2020-09-25 11:14:51,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1187 states. [2020-09-25 11:14:51,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1187 states to 1187 states and 1453 transitions. [2020-09-25 11:14:51,302 INFO L78 Accepts]: Start accepts. Automaton has 1187 states and 1453 transitions. Word has length 178 [2020-09-25 11:14:51,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:14:51,303 INFO L479 AbstractCegarLoop]: Abstraction has 1187 states and 1453 transitions. [2020-09-25 11:14:51,303 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 11:14:51,303 INFO L276 IsEmpty]: Start isEmpty. Operand 1187 states and 1453 transitions. [2020-09-25 11:14:51,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-09-25 11:14:51,310 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:14:51,311 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:14:51,311 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 11:14:51,311 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:14:51,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:14:51,312 INFO L82 PathProgramCache]: Analyzing trace with hash -226891494, now seen corresponding path program 1 times [2020-09-25 11:14:51,312 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:14:51,312 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1152231053] [2020-09-25 11:14:51,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:14:51,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:14:51,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:14:51,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:14:51,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:14:52,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:14:53,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:14:53,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:14:56,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:14:56,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 210 [2020-09-25 11:14:56,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 11:14:56,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5026 [2020-09-25 11:14:56,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:14:56,367 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:14:56,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-25 11:14:56,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-25 11:14:56,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-09-25 11:14:56,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:14:57,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:14:57,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:14:57,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:14:57,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:14:57,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 11:14:57,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:14:57,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-25 11:14:57,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:14:57,352 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:14:57,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:14:57,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:14:57,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 11:14:57,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:14:57,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-09-25 11:14:57,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:14:57,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:14:57,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:14:57,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:14:57,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-09-25 11:14:57,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 11:14:57,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 316 [2020-09-25 11:14:57,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:14:57,747 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:14:57,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 11:14:57,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:14:57,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 11:14:57,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:14:58,121 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 30 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 11:14:58,123 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1152231053] [2020-09-25 11:14:58,124 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 11:14:58,124 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-09-25 11:14:58,124 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622328808] [2020-09-25 11:14:58,125 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-09-25 11:14:58,125 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:14:58,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-09-25 11:14:58,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=234, Unknown=0, NotChecked=0, Total=342 [2020-09-25 11:14:58,130 INFO L87 Difference]: Start difference. First operand 1187 states and 1453 transitions. Second operand 19 states. [2020-09-25 11:14:59,832 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-09-25 11:15:00,447 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 89 [2020-09-25 11:15:00,927 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 88 [2020-09-25 11:15:03,018 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 87 [2020-09-25 11:15:03,832 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 86 [2020-09-25 11:15:04,259 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-09-25 11:15:04,740 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 84 [2020-09-25 11:15:07,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:15:07,637 INFO L93 Difference]: Finished difference Result 3941 states and 5134 transitions. [2020-09-25 11:15:07,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-09-25 11:15:07,638 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 199 [2020-09-25 11:15:07,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:15:07,667 INFO L225 Difference]: With dead ends: 3941 [2020-09-25 11:15:07,667 INFO L226 Difference]: Without dead ends: 2778 [2020-09-25 11:15:07,675 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 286 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=436, Invalid=896, Unknown=0, NotChecked=0, Total=1332 [2020-09-25 11:15:07,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2778 states. [2020-09-25 11:15:07,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2778 to 2410. [2020-09-25 11:15:07,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2410 states. [2020-09-25 11:15:07,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2410 states to 2410 states and 2941 transitions. [2020-09-25 11:15:07,756 INFO L78 Accepts]: Start accepts. Automaton has 2410 states and 2941 transitions. Word has length 199 [2020-09-25 11:15:07,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:15:07,757 INFO L479 AbstractCegarLoop]: Abstraction has 2410 states and 2941 transitions. [2020-09-25 11:15:07,757 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-09-25 11:15:07,757 INFO L276 IsEmpty]: Start isEmpty. Operand 2410 states and 2941 transitions. [2020-09-25 11:15:07,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2020-09-25 11:15:07,769 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:15:07,770 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-09-25 11:15:07,770 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 11:15:07,770 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:15:07,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:15:07,771 INFO L82 PathProgramCache]: Analyzing trace with hash -1980392028, now seen corresponding path program 1 times [2020-09-25 11:15:07,771 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:15:07,771 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [691054377] [2020-09-25 11:15:07,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:15:07,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:15:07,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:15:07,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:15:08,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:15:08,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:15:09,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:15:12,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:15:12,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 249 [2020-09-25 11:15:12,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 11:15:12,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5041 [2020-09-25 11:15:12,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:15:12,850 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:15:12,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-09-25 11:15:12,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 11:15:12,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 163 [2020-09-25 11:15:12,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1