/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=0.5 --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/Problem11_label18.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 14:43:08,570 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 14:43:08,574 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 14:43:08,601 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 14:43:08,601 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 14:43:08,602 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 14:43:08,604 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 14:43:08,606 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 14:43:08,607 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 14:43:08,609 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 14:43:08,610 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 14:43:08,611 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 14:43:08,611 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 14:43:08,612 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 14:43:08,614 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 14:43:08,615 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 14:43:08,616 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 14:43:08,617 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 14:43:08,619 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 14:43:08,621 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 14:43:08,622 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 14:43:08,624 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 14:43:08,625 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 14:43:08,626 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 14:43:08,628 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 14:43:08,629 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 14:43:08,629 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 14:43:08,630 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 14:43:08,631 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 14:43:08,632 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 14:43:08,632 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 14:43:08,633 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 14:43:08,633 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 14:43:08,634 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 14:43:08,635 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 14:43:08,636 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 14:43:08,636 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 14:43:08,637 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 14:43:08,637 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 14:43:08,638 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 14:43:08,639 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 14:43:08,640 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 14:43:08,666 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 14:43:08,666 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 14:43:08,667 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 14:43:08,668 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 14:43:08,668 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 14:43:08,668 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 14:43:08,668 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 14:43:08,668 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 14:43:08,669 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 14:43:08,669 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 14:43:08,669 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 14:43:08,669 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 14:43:08,669 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 14:43:08,670 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 14:43:08,670 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 14:43:08,670 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 14:43:08,670 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 14:43:08,670 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 14:43:08,671 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 14:43:08,671 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 14:43:08,671 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 14:43:08,671 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 14:43:08,671 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 14:43:08,672 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 14:43:08,675 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 14:43:08,675 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 14:43:08,675 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 14:43:08,676 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 14:43:08,676 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 14:43:08,676 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=0.5;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=0.5;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=0.5;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=0.5;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=0.5;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=0.5;log-additional-information=true; [2020-09-25 14:43:09,183 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 14:43:09,211 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 14:43:09,217 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 14:43:09,218 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 14:43:09,220 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 14:43:09,221 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem11_label18.c [2020-09-25 14:43:09,312 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5154eea7e/ca76944a02b74b8abf56286fc2ddd108/FLAG51c07eafe [2020-09-25 14:43:09,981 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 14:43:09,982 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem11_label18.c [2020-09-25 14:43:09,999 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5154eea7e/ca76944a02b74b8abf56286fc2ddd108/FLAG51c07eafe [2020-09-25 14:43:10,176 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5154eea7e/ca76944a02b74b8abf56286fc2ddd108 [2020-09-25 14:43:10,191 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 14:43:10,197 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 14:43:10,198 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 14:43:10,198 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 14:43:10,202 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 14:43:10,204 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:43:10" (1/1) ... [2020-09-25 14:43:10,208 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cc64d8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:43:10, skipping insertion in model container [2020-09-25 14:43:10,208 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:43:10" (1/1) ... [2020-09-25 14:43:10,217 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 14:43:10,301 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 14:43:11,001 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:43:11,127 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 14:43:11,298 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:43:11,325 INFO L208 MainTranslator]: Completed translation [2020-09-25 14:43:11,327 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:43:11 WrapperNode [2020-09-25 14:43:11,327 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 14:43:11,328 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 14:43:11,329 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 14:43:11,329 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 14:43:11,352 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:43:11" (1/1) ... [2020-09-25 14:43:11,353 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:43:11" (1/1) ... [2020-09-25 14:43:11,404 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:43:11" (1/1) ... [2020-09-25 14:43:11,405 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:43:11" (1/1) ... [2020-09-25 14:43:11,480 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:43:11" (1/1) ... [2020-09-25 14:43:11,496 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:43:11" (1/1) ... [2020-09-25 14:43:11,504 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:43:11" (1/1) ... [2020-09-25 14:43:11,518 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 14:43:11,519 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 14:43:11,519 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 14:43:11,519 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 14:43:11,521 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:43:11" (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 14:43:11,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 14:43:11,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 14:43:11,606 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-09-25 14:43:11,606 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 14:43:11,606 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-09-25 14:43:11,607 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 14:43:11,607 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 14:43:11,607 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-25 14:43:11,607 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 14:43:11,607 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 14:43:11,608 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 14:43:14,074 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 14:43:14,074 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 14:43:14,086 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:43:14 BoogieIcfgContainer [2020-09-25 14:43:14,087 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 14:43:14,088 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 14:43:14,088 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 14:43:14,092 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 14:43:14,092 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:43:10" (1/3) ... [2020-09-25 14:43:14,093 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a832475 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:43:14, skipping insertion in model container [2020-09-25 14:43:14,094 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:43:11" (2/3) ... [2020-09-25 14:43:14,094 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a832475 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:43:14, skipping insertion in model container [2020-09-25 14:43:14,094 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:43:14" (3/3) ... [2020-09-25 14:43:14,097 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem11_label18.c [2020-09-25 14:43:14,109 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 14:43:14,120 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 14:43:14,142 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 14:43:14,176 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 14:43:14,176 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 14:43:14,176 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 14:43:14,177 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 14:43:14,177 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 14:43:14,177 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 14:43:14,177 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 14:43:14,177 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 14:43:14,216 INFO L276 IsEmpty]: Start isEmpty. Operand 813 states. [2020-09-25 14:43:14,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-09-25 14:43:14,227 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:43:14,228 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] [2020-09-25 14:43:14,229 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:43:14,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:43:14,237 INFO L82 PathProgramCache]: Analyzing trace with hash -123889732, now seen corresponding path program 1 times [2020-09-25 14:43:14,249 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:43:14,249 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [766864996] [2020-09-25 14:43:14,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:43:14,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:43:14,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:43:14,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:43:14,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:43:15,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:43:15,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-09-25 14:43:15,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 14:43:15,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1343 [2020-09-25 14:43:15,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:43:15,783 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:43:15,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:43:15,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 14:43:15,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 14:43:15,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 14:43:15,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:43:15,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:43:15,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:43:16,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:43:16,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 14:43:16,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:43:16,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 14:43:16,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:43:16,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:43:16,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:43:16,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:43:16,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 14:43:16,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:43:16,035 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 14:43:16,036 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [766864996] [2020-09-25 14:43:16,038 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:43:16,039 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 14:43:16,040 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709537325] [2020-09-25 14:43:16,047 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 14:43:16,048 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:43:16,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 14:43:16,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 14:43:16,073 INFO L87 Difference]: Start difference. First operand 813 states. Second operand 4 states. [2020-09-25 14:43:19,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:43:19,948 INFO L93 Difference]: Finished difference Result 1921 states and 2518 transitions. [2020-09-25 14:43:19,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 14:43:19,951 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 55 [2020-09-25 14:43:19,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:43:19,982 INFO L225 Difference]: With dead ends: 1921 [2020-09-25 14:43:19,982 INFO L226 Difference]: Without dead ends: 1036 [2020-09-25 14:43:19,997 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 14:43:20,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1036 states. [2020-09-25 14:43:20,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1036 to 978. [2020-09-25 14:43:20,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 978 states. [2020-09-25 14:43:20,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 978 states to 978 states and 1165 transitions. [2020-09-25 14:43:20,127 INFO L78 Accepts]: Start accepts. Automaton has 978 states and 1165 transitions. Word has length 55 [2020-09-25 14:43:20,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:43:20,128 INFO L479 AbstractCegarLoop]: Abstraction has 978 states and 1165 transitions. [2020-09-25 14:43:20,128 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 14:43:20,128 INFO L276 IsEmpty]: Start isEmpty. Operand 978 states and 1165 transitions. [2020-09-25 14:43:20,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2020-09-25 14:43:20,136 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:43:20,136 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:43:20,137 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 14:43:20,137 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:43:20,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:43:20,138 INFO L82 PathProgramCache]: Analyzing trace with hash 497365935, now seen corresponding path program 1 times [2020-09-25 14:43:20,138 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:43:20,138 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [347106815] [2020-09-25 14:43:20,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:43:20,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:43:20,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:43:20,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:43:22,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:43:23,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:43:23,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:43:23,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:43:25,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:43:25,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 148 [2020-09-25 14:43:25,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 14:43:25,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 14:43:25,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:43:25,194 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:43:25,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:43:25,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 14:43:25,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-09-25 14:43:25,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:43:25,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:43:25,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:43:25,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:43:25,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:43:25,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 14:43:25,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:43:25,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-25 14:43:25,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:43:25,317 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:43:25,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:43:25,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:43:25,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 14:43:25,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:43:25,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-25 14:43:25,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:43:25,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:43:25,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:43:25,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-25 14:43:25,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:43:25,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 194 [2020-09-25 14:43:25,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:43:25,579 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:43:25,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 14:43:25,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 14:43:25,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 14:43:25,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:43:25,682 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:43:25,682 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [347106815] [2020-09-25 14:43:25,683 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:43:25,684 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 14:43:25,684 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439222784] [2020-09-25 14:43:25,688 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 14:43:25,689 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:43:25,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 14:43:25,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-25 14:43:25,690 INFO L87 Difference]: Start difference. First operand 978 states and 1165 transitions. Second operand 8 states. [2020-09-25 14:43:31,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:43:31,585 INFO L93 Difference]: Finished difference Result 3098 states and 3878 transitions. [2020-09-25 14:43:31,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 14:43:31,586 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 137 [2020-09-25 14:43:31,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:43:31,602 INFO L225 Difference]: With dead ends: 3098 [2020-09-25 14:43:31,603 INFO L226 Difference]: Without dead ends: 2137 [2020-09-25 14:43:31,609 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-25 14:43:31,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2137 states. [2020-09-25 14:43:31,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2137 to 1779. [2020-09-25 14:43:31,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1779 states. [2020-09-25 14:43:31,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1779 states to 1779 states and 2253 transitions. [2020-09-25 14:43:31,681 INFO L78 Accepts]: Start accepts. Automaton has 1779 states and 2253 transitions. Word has length 137 [2020-09-25 14:43:31,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:43:31,684 INFO L479 AbstractCegarLoop]: Abstraction has 1779 states and 2253 transitions. [2020-09-25 14:43:31,684 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 14:43:31,684 INFO L276 IsEmpty]: Start isEmpty. Operand 1779 states and 2253 transitions. [2020-09-25 14:43:31,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-09-25 14:43:31,699 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:43:31,700 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:43:31,700 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 14:43:31,700 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:43:31,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:43:31,701 INFO L82 PathProgramCache]: Analyzing trace with hash 466587141, now seen corresponding path program 1 times [2020-09-25 14:43:31,701 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:43:31,701 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [707479476] [2020-09-25 14:43:31,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:43:31,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:43:31,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:43:31,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:43:32,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:43:32,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:43:34,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:43:36,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:43:36,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-25 14:43:36,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 14:43:36,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-09-25 14:43:36,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:43:36,785 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:43:36,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:43:36,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 14:43:36,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-09-25 14:43:36,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:43:36,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:43:36,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:43:36,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:43:36,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:43:36,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 14:43:36,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:43:36,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 14:43:36,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:43:36,890 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:43:36,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:43:36,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:43:36,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 14:43:36,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:43:36,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-25 14:43:36,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:43:36,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:43:37,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:43:37,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-09-25 14:43:37,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:43:37,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 253 [2020-09-25 14:43:37,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:43:37,189 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:43:37,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 14:43:37,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 14:43:37,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-09-25 14:43:37,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:43:37,363 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:43:37,363 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [707479476] [2020-09-25 14:43:37,363 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:43:37,364 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 14:43:37,364 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147054903] [2020-09-25 14:43:37,366 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 14:43:37,366 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:43:37,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 14:43:37,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-25 14:43:37,367 INFO L87 Difference]: Start difference. First operand 1779 states and 2253 transitions. Second operand 7 states. [2020-09-25 14:43:42,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:43:42,133 INFO L93 Difference]: Finished difference Result 4058 states and 5328 transitions. [2020-09-25 14:43:42,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 14:43:42,138 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 163 [2020-09-25 14:43:42,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:43:42,151 INFO L225 Difference]: With dead ends: 4058 [2020-09-25 14:43:42,151 INFO L226 Difference]: Without dead ends: 2296 [2020-09-25 14:43:42,159 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-09-25 14:43:42,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2296 states. [2020-09-25 14:43:42,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2296 to 2229. [2020-09-25 14:43:42,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2229 states. [2020-09-25 14:43:42,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2229 states to 2229 states and 2747 transitions. [2020-09-25 14:43:42,215 INFO L78 Accepts]: Start accepts. Automaton has 2229 states and 2747 transitions. Word has length 163 [2020-09-25 14:43:42,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:43:42,216 INFO L479 AbstractCegarLoop]: Abstraction has 2229 states and 2747 transitions. [2020-09-25 14:43:42,216 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 14:43:42,217 INFO L276 IsEmpty]: Start isEmpty. Operand 2229 states and 2747 transitions. [2020-09-25 14:43:42,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-09-25 14:43:42,220 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:43:42,220 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:43:42,220 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 14:43:42,221 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:43:42,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:43:42,221 INFO L82 PathProgramCache]: Analyzing trace with hash 1755075921, now seen corresponding path program 1 times [2020-09-25 14:43:42,221 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:43:42,222 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1287058047] [2020-09-25 14:43:42,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:43:42,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:43:42,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:43:42,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:43:43,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:43:43,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:43:45,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:43:45,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:43:47,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:43:47,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:43:47,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:43:47,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-25 14:43:47,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 14:43:47,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-09-25 14:43:47,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:43:47,282 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:43:47,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:43:47,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 14:43:47,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 121 [2020-09-25 14:43:47,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:43:47,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:43:47,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:43:47,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:43:47,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:43:47,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 14:43:47,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:43:47,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 14:43:47,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:43:47,423 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:43:47,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:43:47,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:43:47,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 14:43:47,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:43:47,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-25 14:43:47,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:43:47,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:43:47,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:43:47,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-09-25 14:43:47,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:43:47,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 288 [2020-09-25 14:43:47,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:43:47,777 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:43:47,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 14:43:47,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 14:43:47,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-09-25 14:43:47,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:43:47,954 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:43:47,954 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1287058047] [2020-09-25 14:43:47,955 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:43:47,955 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 14:43:47,955 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187725305] [2020-09-25 14:43:47,956 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 14:43:47,956 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:43:47,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 14:43:47,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-25 14:43:47,957 INFO L87 Difference]: Start difference. First operand 2229 states and 2747 transitions. Second operand 7 states. [2020-09-25 14:43:53,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:43:53,610 INFO L93 Difference]: Finished difference Result 4077 states and 5144 transitions. [2020-09-25 14:43:53,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 14:43:53,612 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 176 [2020-09-25 14:43:53,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:43:53,628 INFO L225 Difference]: With dead ends: 4077 [2020-09-25 14:43:53,628 INFO L226 Difference]: Without dead ends: 2928 [2020-09-25 14:43:53,633 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-09-25 14:43:53,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2928 states. [2020-09-25 14:43:53,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2928 to 2693. [2020-09-25 14:43:53,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2693 states. [2020-09-25 14:43:53,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2693 states to 2693 states and 3341 transitions. [2020-09-25 14:43:53,734 INFO L78 Accepts]: Start accepts. Automaton has 2693 states and 3341 transitions. Word has length 176 [2020-09-25 14:43:53,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:43:53,735 INFO L479 AbstractCegarLoop]: Abstraction has 2693 states and 3341 transitions. [2020-09-25 14:43:53,735 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 14:43:53,735 INFO L276 IsEmpty]: Start isEmpty. Operand 2693 states and 3341 transitions. [2020-09-25 14:43:53,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2020-09-25 14:43:53,741 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:43:53,741 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-09-25 14:43:53,741 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 14:43:53,742 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:43:53,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:43:53,742 INFO L82 PathProgramCache]: Analyzing trace with hash -1151458182, now seen corresponding path program 1 times [2020-09-25 14:43:53,742 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:43:53,743 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1225638489] [2020-09-25 14:43:53,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:43:53,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:43:53,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:43:54,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:43:54,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:43:56,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:43:56,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:43:56,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:43:56,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:43:57,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:43:58,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:43:58,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 282 [2020-09-25 14:43:58,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 14:43:58,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5044 [2020-09-25 14:43:58,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:43:58,855 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:43:58,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:43:58,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 143 [2020-09-25 14:43:58,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-09-25 14:43:58,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:43:58,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:43:58,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:43:58,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:43:58,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:43:58,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 14:43:58,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:43:58,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 14:43:58,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:43:58,988 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:43:58,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:43:58,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:43:58,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:43:58,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:43:59,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-25 14:43:59,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:43:59,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:43:59,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:43:59,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-09-25 14:43:59,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:43:59,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 140 [2020-09-25 14:43:59,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:43:59,175 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:43:59,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:43:59,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:43:59,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-09-25 14:43:59,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1