/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.8 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label32.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 07:56:33,408 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 07:56:33,413 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 07:56:33,461 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 07:56:33,461 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 07:56:33,471 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 07:56:33,473 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 07:56:33,477 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 07:56:33,479 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 07:56:33,481 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 07:56:33,482 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 07:56:33,484 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 07:56:33,484 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 07:56:33,486 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 07:56:33,487 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 07:56:33,490 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 07:56:33,492 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 07:56:33,493 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 07:56:33,495 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 07:56:33,499 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 07:56:33,503 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 07:56:33,504 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 07:56:33,506 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 07:56:33,506 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 07:56:33,512 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 07:56:33,513 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 07:56:33,513 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 07:56:33,514 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 07:56:33,514 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 07:56:33,515 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 07:56:33,515 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 07:56:33,516 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 07:56:33,517 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 07:56:33,518 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 07:56:33,519 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 07:56:33,519 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 07:56:33,520 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 07:56:33,520 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 07:56:33,520 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 07:56:33,521 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 07:56:33,522 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 07:56:33,523 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 07:56:33,547 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 07:56:33,548 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 07:56:33,549 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 07:56:33,549 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 07:56:33,550 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 07:56:33,550 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 07:56:33,550 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 07:56:33,550 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 07:56:33,550 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 07:56:33,551 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 07:56:33,551 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 07:56:33,551 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 07:56:33,551 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 07:56:33,551 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 07:56:33,552 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 07:56:33,552 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 07:56:33,552 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 07:56:33,552 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 07:56:33,552 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 07:56:33,553 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 07:56:33,553 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 07:56:33,553 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:56:33,553 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 07:56:33,554 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 07:56:33,554 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 07:56:33,554 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 07:56:33,554 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 07:56:33,554 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 07:56:33,555 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 07:56:33,555 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; [2020-09-25 07:56:34,042 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 07:56:34,068 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 07:56:34,072 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 07:56:34,074 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 07:56:34,074 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 07:56:34,076 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label32.c [2020-09-25 07:56:34,150 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c11cb0460/f08374e110b34872b8b5aca5643930e6/FLAG2f5399073 [2020-09-25 07:56:34,760 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 07:56:34,762 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem10_label32.c [2020-09-25 07:56:34,787 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c11cb0460/f08374e110b34872b8b5aca5643930e6/FLAG2f5399073 [2020-09-25 07:56:34,975 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c11cb0460/f08374e110b34872b8b5aca5643930e6 [2020-09-25 07:56:34,990 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 07:56:34,996 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 07:56:34,999 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 07:56:34,999 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 07:56:35,003 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 07:56:35,004 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:56:34" (1/1) ... [2020-09-25 07:56:35,009 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42dfe0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:56:35, skipping insertion in model container [2020-09-25 07:56:35,009 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:56:34" (1/1) ... [2020-09-25 07:56:35,019 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 07:56:35,082 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 07:56:35,527 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:56:35,533 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 07:56:35,747 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:56:35,770 INFO L208 MainTranslator]: Completed translation [2020-09-25 07:56:35,772 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:56:35 WrapperNode [2020-09-25 07:56:35,772 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 07:56:35,773 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 07:56:35,773 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 07:56:35,773 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 07:56:35,790 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:56:35" (1/1) ... [2020-09-25 07:56:35,790 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:56:35" (1/1) ... [2020-09-25 07:56:35,808 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:56:35" (1/1) ... [2020-09-25 07:56:35,809 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:56:35" (1/1) ... [2020-09-25 07:56:35,859 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:56:35" (1/1) ... [2020-09-25 07:56:35,884 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:56:35" (1/1) ... [2020-09-25 07:56:35,903 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:56:35" (1/1) ... [2020-09-25 07:56:35,914 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 07:56:35,915 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 07:56:35,915 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 07:56:35,915 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 07:56:35,917 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:56:35" (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 07:56:36,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 07:56:36,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 07:56:36,006 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-09-25 07:56:36,007 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 07:56:36,007 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-09-25 07:56:36,007 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 07:56:36,008 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 07:56:36,009 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-25 07:56:36,009 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 07:56:36,010 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 07:56:36,010 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 07:56:37,512 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 07:56:37,512 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 07:56:37,520 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:56:37 BoogieIcfgContainer [2020-09-25 07:56:37,520 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 07:56:37,522 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 07:56:37,522 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 07:56:37,526 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 07:56:37,526 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 07:56:34" (1/3) ... [2020-09-25 07:56:37,527 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e40405c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:56:37, skipping insertion in model container [2020-09-25 07:56:37,528 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:56:35" (2/3) ... [2020-09-25 07:56:37,528 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e40405c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:56:37, skipping insertion in model container [2020-09-25 07:56:37,528 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:56:37" (3/3) ... [2020-09-25 07:56:37,531 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label32.c [2020-09-25 07:56:37,543 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 07:56:37,555 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 07:56:37,581 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 07:56:37,621 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 07:56:37,621 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 07:56:37,621 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 07:56:37,621 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 07:56:37,621 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 07:56:37,622 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 07:56:37,622 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 07:56:37,622 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 07:56:37,657 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states. [2020-09-25 07:56:37,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-09-25 07:56:37,668 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:56:37,669 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:56:37,670 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:56:37,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:56:37,679 INFO L82 PathProgramCache]: Analyzing trace with hash -1927363665, now seen corresponding path program 1 times [2020-09-25 07:56:37,693 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:56:37,694 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1001699951] [2020-09-25 07:56:37,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:56:37,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:56:37,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:56:38,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:56:38,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:56:38,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-25 07:56:38,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:56:38,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 676 [2020-09-25 07:56:38,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:56:38,570 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:56:38,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:56:38,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 07:56:38,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-09-25 07:56:38,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 07:56:38,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:56:38,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:56:38,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:56:38,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:56:38,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 07:56:38,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:56:38,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 07:56:38,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:56:38,699 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:56:38,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:56:38,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:56:38,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:56:38,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:56:38,743 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 07:56:38,744 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1001699951] [2020-09-25 07:56:38,746 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:56:38,746 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 07:56:38,747 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223933434] [2020-09-25 07:56:38,753 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 07:56:38,754 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:56:38,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 07:56:38,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 07:56:38,775 INFO L87 Difference]: Start difference. First operand 456 states. Second operand 4 states. [2020-09-25 07:56:40,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:56:40,551 INFO L93 Difference]: Finished difference Result 1069 states and 1495 transitions. [2020-09-25 07:56:40,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 07:56:40,553 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 44 [2020-09-25 07:56:40,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:56:40,577 INFO L225 Difference]: With dead ends: 1069 [2020-09-25 07:56:40,578 INFO L226 Difference]: Without dead ends: 555 [2020-09-25 07:56:40,589 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:56:40,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2020-09-25 07:56:40,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 543. [2020-09-25 07:56:40,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 543 states. [2020-09-25 07:56:40,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 670 transitions. [2020-09-25 07:56:40,685 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 670 transitions. Word has length 44 [2020-09-25 07:56:40,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:56:40,686 INFO L479 AbstractCegarLoop]: Abstraction has 543 states and 670 transitions. [2020-09-25 07:56:40,686 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 07:56:40,686 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 670 transitions. [2020-09-25 07:56:40,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-09-25 07:56:40,693 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:56:40,694 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:56:40,694 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 07:56:40,694 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:56:40,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:56:40,695 INFO L82 PathProgramCache]: Analyzing trace with hash -739682472, now seen corresponding path program 1 times [2020-09-25 07:56:40,695 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:56:40,695 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [230759672] [2020-09-25 07:56:40,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:56:40,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:56:40,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:56:40,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:56:41,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:56:41,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:56:42,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:56:42,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:56:42,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-09-25 07:56:42,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:56:42,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1905 [2020-09-25 07:56:42,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:56:42,639 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:56:42,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:56:42,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 07:56:42,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-25 07:56:42,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:56:42,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:56:42,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:56:42,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:56:42,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:56:42,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 07:56:42,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:56:42,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 07:56:42,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:56:42,747 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:56:42,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:56:42,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:56:42,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:56:42,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:56:42,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 07:56:42,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:56:42,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:56:42,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:56:42,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-25 07:56:42,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:56:42,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 165 [2020-09-25 07:56:42,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:56:42,968 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:56:42,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:56:42,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 07:56:42,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 07:56:42,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:56:43,180 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:56:43,181 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [230759672] [2020-09-25 07:56:43,181 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:56:43,182 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 07:56:43,183 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878107965] [2020-09-25 07:56:43,186 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 07:56:43,186 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:56:43,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 07:56:43,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-25 07:56:43,189 INFO L87 Difference]: Start difference. First operand 543 states and 670 transitions. Second operand 7 states. [2020-09-25 07:56:45,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:56:45,212 INFO L93 Difference]: Finished difference Result 1258 states and 1571 transitions. [2020-09-25 07:56:45,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 07:56:45,213 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 124 [2020-09-25 07:56:45,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:56:45,221 INFO L225 Difference]: With dead ends: 1258 [2020-09-25 07:56:45,221 INFO L226 Difference]: Without dead ends: 730 [2020-09-25 07:56:45,225 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-09-25 07:56:45,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 730 states. [2020-09-25 07:56:45,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 730 to 699. [2020-09-25 07:56:45,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 699 states. [2020-09-25 07:56:45,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 855 transitions. [2020-09-25 07:56:45,280 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 855 transitions. Word has length 124 [2020-09-25 07:56:45,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:56:45,280 INFO L479 AbstractCegarLoop]: Abstraction has 699 states and 855 transitions. [2020-09-25 07:56:45,280 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 07:56:45,281 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 855 transitions. [2020-09-25 07:56:45,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-09-25 07:56:45,284 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:56:45,284 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:56:45,284 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 07:56:45,284 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:56:45,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:56:45,285 INFO L82 PathProgramCache]: Analyzing trace with hash -1991578147, now seen corresponding path program 1 times [2020-09-25 07:56:45,285 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:56:45,286 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2046777765] [2020-09-25 07:56:45,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:56:45,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:56:45,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:56:45,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:56:45,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:56:45,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:56:45,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:56:47,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:56:47,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:56:47,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:56:49,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:56:49,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-09-25 07:56:49,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 07:56:49,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4324 [2020-09-25 07:56:49,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:56:49,653 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:56:49,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:56:49,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 103 [2020-09-25 07:56:49,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-09-25 07:56:49,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:56:49,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:56:49,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:56:49,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:56:49,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:56:49,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 07:56:49,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:56:49,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 07:56:49,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:56:49,795 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:56:49,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:56:49,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:56:49,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:56:49,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:56:49,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 07:56:49,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:56:49,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:56:49,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:56:49,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:56:49,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:56:49,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-09-25 07:56:49,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:56:49,983 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:56:49,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 07:56:49,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:56:49,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 07:56:49,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:56:50,039 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 27 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:56:50,040 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2046777765] [2020-09-25 07:56:50,040 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:56:50,040 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-25 07:56:50,041 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169153507] [2020-09-25 07:56:50,042 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 07:56:50,043 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:56:50,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 07:56:50,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 07:56:50,043 INFO L87 Difference]: Start difference. First operand 699 states and 855 transitions. Second operand 6 states. [2020-09-25 07:56:52,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:56:52,804 INFO L93 Difference]: Finished difference Result 1925 states and 2517 transitions. [2020-09-25 07:56:52,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 07:56:52,806 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 133 [2020-09-25 07:56:52,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:56:52,815 INFO L225 Difference]: With dead ends: 1925 [2020-09-25 07:56:52,815 INFO L226 Difference]: Without dead ends: 1391 [2020-09-25 07:56:52,818 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-09-25 07:56:52,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1391 states. [2020-09-25 07:56:52,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1391 to 1335. [2020-09-25 07:56:52,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1335 states. [2020-09-25 07:56:52,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1335 states to 1335 states and 1725 transitions. [2020-09-25 07:56:52,869 INFO L78 Accepts]: Start accepts. Automaton has 1335 states and 1725 transitions. Word has length 133 [2020-09-25 07:56:52,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:56:52,870 INFO L479 AbstractCegarLoop]: Abstraction has 1335 states and 1725 transitions. [2020-09-25 07:56:52,870 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 07:56:52,870 INFO L276 IsEmpty]: Start isEmpty. Operand 1335 states and 1725 transitions. [2020-09-25 07:56:52,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-09-25 07:56:52,874 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:56:52,874 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:56:52,874 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 07:56:52,874 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:56:52,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:56:52,875 INFO L82 PathProgramCache]: Analyzing trace with hash -1945552283, now seen corresponding path program 1 times [2020-09-25 07:56:52,875 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:56:52,876 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1941543918] [2020-09-25 07:56:52,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:56:52,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:56:52,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:56:53,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:56:53,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:56:53,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:56:53,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:56:55,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:56:55,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 146 [2020-09-25 07:56:55,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:56:55,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2806 [2020-09-25 07:56:55,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:56:55,710 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:56:55,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:56:55,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-25 07:56:55,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-09-25 07:56:55,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:56:55,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:56:55,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:56:55,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:56:55,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:56:55,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 07:56:55,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:56:55,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 07:56:55,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:56:55,787 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:56:55,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:56:55,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:56:55,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 07:56:55,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:56:55,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 07:56:55,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:56:55,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:56:55,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:56:55,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-09-25 07:56:55,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:56:55,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128 [2020-09-25 07:56:55,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:56:55,959 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:56:55,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:56:55,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 07:56:55,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-25 07:56:55,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:56:56,041 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:56:56,042 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1941543918] [2020-09-25 07:56:56,042 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:56:56,042 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 07:56:56,042 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474901343] [2020-09-25 07:56:56,043 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 07:56:56,043 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:56:56,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 07:56:56,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-25 07:56:56,044 INFO L87 Difference]: Start difference. First operand 1335 states and 1725 transitions. Second operand 7 states. [2020-09-25 07:56:58,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:56:58,517 INFO L93 Difference]: Finished difference Result 3351 states and 4564 transitions. [2020-09-25 07:56:58,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 07:56:58,521 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 135 [2020-09-25 07:56:58,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:56:58,545 INFO L225 Difference]: With dead ends: 3351 [2020-09-25 07:56:58,545 INFO L226 Difference]: Without dead ends: 2181 [2020-09-25 07:56:58,552 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-09-25 07:56:58,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2181 states. [2020-09-25 07:56:58,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2181 to 1825. [2020-09-25 07:56:58,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1825 states. [2020-09-25 07:56:58,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1825 states to 1825 states and 2298 transitions. [2020-09-25 07:56:58,680 INFO L78 Accepts]: Start accepts. Automaton has 1825 states and 2298 transitions. Word has length 135 [2020-09-25 07:56:58,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:56:58,681 INFO L479 AbstractCegarLoop]: Abstraction has 1825 states and 2298 transitions. [2020-09-25 07:56:58,681 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 07:56:58,682 INFO L276 IsEmpty]: Start isEmpty. Operand 1825 states and 2298 transitions. [2020-09-25 07:56:58,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2020-09-25 07:56:58,690 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:56:58,690 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:56:58,691 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 07:56:58,691 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:56:58,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:56:58,691 INFO L82 PathProgramCache]: Analyzing trace with hash -718653912, now seen corresponding path program 1 times [2020-09-25 07:56:58,691 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:56:58,692 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1523940707] [2020-09-25 07:56:58,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:56:58,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:56:58,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:56:58,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:56:59,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:56:59,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:56:59,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:57:00,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:57:00,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:57:01,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:57:02,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:57:02,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-09-25 07:57:02,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 07:57:02,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3461 [2020-09-25 07:57:02,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:57:02,207 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:57:02,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 07:57:02,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-09-25 07:57:02,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 121 [2020-09-25 07:57:02,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:57:02,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:57:02,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:57:02,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:57:02,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:57:02,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 07:57:02,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:57:02,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 07:57:02,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:57:02,326 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:57:02,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:57:02,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:57:02,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:57:02,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:57:02,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 07:57:02,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:57:02,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:57:02,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:57:02,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-09-25 07:57:02,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:57:02,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 134 [2020-09-25 07:57:02,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:57:02,500 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:57:02,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 07:57:02,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:57:02,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-25 07:57:02,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:57:02,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 07:57:02,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:57:02,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:57:02,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:57:02,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:57:02,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-25 07:57:02,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:57:02,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 181 [2020-09-25 07:57:02,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:57:02,738 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:57:02,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:57:02,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 07:57:02,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 07:57:02,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:57:02,817 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 97 proven. 24 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-09-25 07:57:02,817 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1523940707] [2020-09-25 07:57:02,818 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:57:02,818 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-25 07:57:02,818 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998295530] [2020-09-25 07:57:02,819 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 07:57:02,819 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:57:02,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 07:57:02,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-25 07:57:02,820 INFO L87 Difference]: Start difference. First operand 1825 states and 2298 transitions. Second operand 8 states. [2020-09-25 07:57:05,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:57:05,554 INFO L93 Difference]: Finished difference Result 4641 states and 6169 transitions. [2020-09-25 07:57:05,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 07:57:05,555 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 203 [2020-09-25 07:57:05,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:57:05,573 INFO L225 Difference]: With dead ends: 4641 [2020-09-25 07:57:05,574 INFO L226 Difference]: Without dead ends: 2981 [2020-09-25 07:57:05,581 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-09-25 07:57:05,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2981 states. [2020-09-25 07:57:05,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2981 to 2922. [2020-09-25 07:57:05,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2922 states. [2020-09-25 07:57:05,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2922 states to 2922 states and 3778 transitions. [2020-09-25 07:57:05,690 INFO L78 Accepts]: Start accepts. Automaton has 2922 states and 3778 transitions. Word has length 203 [2020-09-25 07:57:05,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:57:05,690 INFO L479 AbstractCegarLoop]: Abstraction has 2922 states and 3778 transitions. [2020-09-25 07:57:05,690 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 07:57:05,691 INFO L276 IsEmpty]: Start isEmpty. Operand 2922 states and 3778 transitions. [2020-09-25 07:57:05,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2020-09-25 07:57:05,695 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:57:05,695 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-09-25 07:57:05,695 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 07:57:05,696 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:57:05,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:57:05,696 INFO L82 PathProgramCache]: Analyzing trace with hash 1157417370, now seen corresponding path program 1 times [2020-09-25 07:57:05,696 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:57:05,696 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [283271851] [2020-09-25 07:57:05,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:57:05,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:57:05,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:57:05,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:57:06,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:57:06,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:57:07,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:57:08,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:57:08,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:57:08,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:57:08,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:57:10,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:57:10,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 229 [2020-09-25 07:57:10,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-25 07:57:10,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-09-25 07:57:10,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:57:10,762 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:57:10,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:57:10,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 103 [2020-09-25 07:57:10,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-25 07:57:10,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:57:10,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:57:10,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:57:10,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:57:10,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:57:10,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 07:57:10,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:57:10,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 07:57:10,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:57:10,847 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:57:10,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:57:10,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:57:10,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:57:10,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:57:10,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 07:57:10,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:57:10,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:57:11,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:57:11,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:57:11,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:57:11,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-09-25 07:57:11,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:57:11,012 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:57:11,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:57:11,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:57:11,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 07:57:11,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:57:11,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-09-25 07:57:11,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:57:11,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:57:11,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:57:11,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-25 07:57:11,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:57:11,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 168 [2020-09-25 07:57:11,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:57:11,250 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:57:11,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:57:11,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 07:57:11,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 07:57:11,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:57:11,474 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 132 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 07:57:11,474 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [283271851] [2020-09-25 07:57:11,477 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:57:11,477 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 07:57:11,478 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659899649] [2020-09-25 07:57:11,479 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 07:57:11,479 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:57:11,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 07:57:11,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-09-25 07:57:11,480 INFO L87 Difference]: Start difference. First operand 2922 states and 3778 transitions. Second operand 9 states. [2020-09-25 07:57:16,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:57:16,073 INFO L93 Difference]: Finished difference Result 6211 states and 8066 transitions. [2020-09-25 07:57:16,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-25 07:57:16,074 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 216 [2020-09-25 07:57:16,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:57:16,091 INFO L225 Difference]: With dead ends: 6211 [2020-09-25 07:57:16,092 INFO L226 Difference]: Without dead ends: 3454 [2020-09-25 07:57:16,101 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=120, Invalid=300, Unknown=0, NotChecked=0, Total=420 [2020-09-25 07:57:16,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3454 states. [2020-09-25 07:57:16,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3454 to 3238. [2020-09-25 07:57:16,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3238 states. [2020-09-25 07:57:16,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3238 states to 3238 states and 4154 transitions. [2020-09-25 07:57:16,193 INFO L78 Accepts]: Start accepts. Automaton has 3238 states and 4154 transitions. Word has length 216 [2020-09-25 07:57:16,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:57:16,194 INFO L479 AbstractCegarLoop]: Abstraction has 3238 states and 4154 transitions. [2020-09-25 07:57:16,194 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 07:57:16,194 INFO L276 IsEmpty]: Start isEmpty. Operand 3238 states and 4154 transitions. [2020-09-25 07:57:16,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2020-09-25 07:57:16,198 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:57:16,199 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-09-25 07:57:16,199 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 07:57:16,199 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:57:16,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:57:16,200 INFO L82 PathProgramCache]: Analyzing trace with hash 1961292051, now seen corresponding path program 1 times [2020-09-25 07:57:16,200 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:57:16,201 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1694013515] [2020-09-25 07:57:16,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:57:16,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:57:16,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:57:16,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:57:16,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:57:16,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:57:17,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:57:20,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:57:21,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:57:21,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-09-25 07:57:21,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 07:57:21,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5032 [2020-09-25 07:57:21,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:57:21,283 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:57:21,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:57:21,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 106 [2020-09-25 07:57:21,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-09-25 07:57:21,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 07:57:21,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:57:21,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:57:21,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:57:21,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:57:21,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 07:57:21,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:57:21,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 07:57:21,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:57:21,391 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:57:21,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:57:21,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:57:21,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:57:21,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:57:21,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 07:57:21,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:57:21,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:57:21,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:57:21,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:57:21,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:57:21,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-09-25 07:57:21,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:57:21,498 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:57:21,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:57:21,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:57:21,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 07:57:21,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:57:21,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-09-25 07:57:21,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:57:21,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking...