/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label52.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 06:46:07,140 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 06:46:07,144 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 06:46:07,170 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 06:46:07,171 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 06:46:07,172 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 06:46:07,173 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 06:46:07,175 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 06:46:07,177 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 06:46:07,177 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 06:46:07,179 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 06:46:07,180 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 06:46:07,180 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 06:46:07,181 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 06:46:07,182 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 06:46:07,183 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 06:46:07,184 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 06:46:07,186 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 06:46:07,188 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 06:46:07,192 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 06:46:07,196 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 06:46:07,200 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 06:46:07,201 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 06:46:07,202 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 06:46:07,205 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 06:46:07,205 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 06:46:07,205 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 06:46:07,206 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 06:46:07,206 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 06:46:07,207 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 06:46:07,208 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 06:46:07,208 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 06:46:07,209 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 06:46:07,210 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 06:46:07,211 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 06:46:07,211 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 06:46:07,212 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 06:46:07,212 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 06:46:07,212 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 06:46:07,213 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 06:46:07,214 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 06:46:07,215 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 06:46:07,240 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 06:46:07,240 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 06:46:07,241 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 06:46:07,241 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 06:46:07,242 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 06:46:07,242 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 06:46:07,242 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 06:46:07,242 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 06:46:07,242 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 06:46:07,243 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 06:46:07,243 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 06:46:07,243 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 06:46:07,243 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 06:46:07,243 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 06:46:07,244 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 06:46:07,244 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 06:46:07,244 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 06:46:07,244 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 06:46:07,244 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 06:46:07,244 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 06:46:07,245 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 06:46:07,245 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 06:46:07,245 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 06:46:07,245 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 06:46:07,246 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 06:46:07,246 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 06:46:07,246 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 06:46:07,246 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 06:46:07,246 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 06:46:07,246 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; [2020-09-25 06:46:07,721 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 06:46:07,736 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 06:46:07,741 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 06:46:07,742 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 06:46:07,744 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 06:46:07,745 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label52.c [2020-09-25 06:46:07,822 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/64f7475d1/a51a8c5c965f41ee9904f621ab6044a4/FLAGd69121fe0 [2020-09-25 06:46:08,452 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 06:46:08,453 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem02_label52.c [2020-09-25 06:46:08,466 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/64f7475d1/a51a8c5c965f41ee9904f621ab6044a4/FLAGd69121fe0 [2020-09-25 06:46:08,681 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/64f7475d1/a51a8c5c965f41ee9904f621ab6044a4 [2020-09-25 06:46:08,696 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 06:46:08,702 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 06:46:08,703 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 06:46:08,704 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 06:46:08,708 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 06:46:08,710 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:46:08" (1/1) ... [2020-09-25 06:46:08,715 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26f88baa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:46:08, skipping insertion in model container [2020-09-25 06:46:08,715 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:46:08" (1/1) ... [2020-09-25 06:46:08,725 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 06:46:08,793 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 06:46:09,245 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:46:09,257 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 06:46:09,493 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:46:09,513 INFO L208 MainTranslator]: Completed translation [2020-09-25 06:46:09,514 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:46:09 WrapperNode [2020-09-25 06:46:09,514 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 06:46:09,515 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 06:46:09,515 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 06:46:09,515 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 06:46:09,533 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:46:09" (1/1) ... [2020-09-25 06:46:09,533 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:46:09" (1/1) ... [2020-09-25 06:46:09,550 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:46:09" (1/1) ... [2020-09-25 06:46:09,551 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:46:09" (1/1) ... [2020-09-25 06:46:09,591 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:46:09" (1/1) ... [2020-09-25 06:46:09,618 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:46:09" (1/1) ... [2020-09-25 06:46:09,627 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:46:09" (1/1) ... [2020-09-25 06:46:09,632 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 06:46:09,633 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 06:46:09,633 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 06:46:09,633 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 06:46:09,634 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:46:09" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 06:46:09,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 06:46:09,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 06:46:09,711 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-09-25 06:46:09,711 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 06:46:09,712 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-09-25 06:46:09,712 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 06:46:09,713 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 06:46:09,713 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-25 06:46:09,713 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 06:46:09,713 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 06:46:09,713 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 06:46:11,052 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 06:46:11,052 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 06:46:11,068 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:46:11 BoogieIcfgContainer [2020-09-25 06:46:11,068 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 06:46:11,073 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 06:46:11,073 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 06:46:11,077 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 06:46:11,077 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 06:46:08" (1/3) ... [2020-09-25 06:46:11,078 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@223d6873 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:46:11, skipping insertion in model container [2020-09-25 06:46:11,078 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:46:09" (2/3) ... [2020-09-25 06:46:11,079 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@223d6873 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:46:11, skipping insertion in model container [2020-09-25 06:46:11,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:46:11" (3/3) ... [2020-09-25 06:46:11,083 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label52.c [2020-09-25 06:46:11,094 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 06:46:11,110 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 06:46:11,130 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 06:46:11,163 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 06:46:11,163 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 06:46:11,163 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 06:46:11,164 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 06:46:11,164 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 06:46:11,164 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 06:46:11,164 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 06:46:11,164 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 06:46:11,196 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states. [2020-09-25 06:46:11,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-09-25 06:46:11,217 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:46:11,219 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:46:11,219 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:46:11,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:46:11,226 INFO L82 PathProgramCache]: Analyzing trace with hash 1349342961, now seen corresponding path program 1 times [2020-09-25 06:46:11,236 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:46:11,236 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1424934705] [2020-09-25 06:46:11,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:46:11,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:46:11,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:11,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:12,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:13,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:14,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:14,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:14,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:15,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:15,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:16,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:46:16,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-09-25 06:46:16,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-25 06:46:16,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-25 06:46:16,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:46:16,483 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:46:16,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:46:16,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 06:46:16,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-09-25 06:46:16,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 06:46:16,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:46:16,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:46:16,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:16,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:46:16,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 06:46:16,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:46:16,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 06:46:16,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:46:16,729 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:46:16,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:46:16,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:46:16,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 06:46:16,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:46:16,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:46:16,773 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1424934705] [2020-09-25 06:46:16,775 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:46:16,775 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 06:46:16,776 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897325333] [2020-09-25 06:46:16,783 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 06:46:16,783 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:46:16,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 06:46:16,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 06:46:16,804 INFO L87 Difference]: Start difference. First operand 527 states. Second operand 4 states. [2020-09-25 06:46:18,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:46:18,954 INFO L93 Difference]: Finished difference Result 1386 states and 1837 transitions. [2020-09-25 06:46:18,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 06:46:18,957 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 130 [2020-09-25 06:46:18,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:46:18,984 INFO L225 Difference]: With dead ends: 1386 [2020-09-25 06:46:18,984 INFO L226 Difference]: Without dead ends: 787 [2020-09-25 06:46:18,997 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 06:46:19,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 787 states. [2020-09-25 06:46:19,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 787 to 733. [2020-09-25 06:46:19,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 733 states. [2020-09-25 06:46:19,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 733 states to 733 states and 884 transitions. [2020-09-25 06:46:19,112 INFO L78 Accepts]: Start accepts. Automaton has 733 states and 884 transitions. Word has length 130 [2020-09-25 06:46:19,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:46:19,113 INFO L479 AbstractCegarLoop]: Abstraction has 733 states and 884 transitions. [2020-09-25 06:46:19,113 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 06:46:19,114 INFO L276 IsEmpty]: Start isEmpty. Operand 733 states and 884 transitions. [2020-09-25 06:46:19,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 06:46:19,121 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:46:19,122 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:46:19,122 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 06:46:19,122 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:46:19,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:46:19,123 INFO L82 PathProgramCache]: Analyzing trace with hash 1975471173, now seen corresponding path program 1 times [2020-09-25 06:46:19,123 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:46:19,123 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [772103073] [2020-09-25 06:46:19,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:46:19,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:46:19,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:19,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:19,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:19,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:19,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:20,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:20,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:21,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:22,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:22,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:24,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:46:24,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 159 [2020-09-25 06:46:24,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-25 06:46:24,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-09-25 06:46:24,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:46:24,175 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:46:24,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:46:24,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 39 [2020-09-25 06:46:24,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-09-25 06:46:24,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:46:24,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:46:24,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:46:24,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:24,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:46:24,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 06:46:24,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:46:24,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 06:46:24,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:46:24,298 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:46:24,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:46:24,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:46:24,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:46:24,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:46:24,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 06:46:24,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:46:24,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:24,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:46:24,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 06:46:24,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:46:24,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 06:46:24,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:46:24,339 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:46:24,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:46:24,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:46:24,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 06:46:24,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:46:24,392 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:46:24,392 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [772103073] [2020-09-25 06:46:24,394 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 06:46:24,394 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-25 06:46:24,395 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665575999] [2020-09-25 06:46:24,399 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 06:46:24,400 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:46:24,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 06:46:24,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 06:46:24,401 INFO L87 Difference]: Start difference. First operand 733 states and 884 transitions. Second operand 5 states. [2020-09-25 06:46:26,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:46:26,306 INFO L93 Difference]: Finished difference Result 1757 states and 2222 transitions. [2020-09-25 06:46:26,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 06:46:26,308 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 148 [2020-09-25 06:46:26,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:46:26,315 INFO L225 Difference]: With dead ends: 1757 [2020-09-25 06:46:26,315 INFO L226 Difference]: Without dead ends: 1046 [2020-09-25 06:46:26,319 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-09-25 06:46:26,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1046 states. [2020-09-25 06:46:26,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1046 to 1036. [2020-09-25 06:46:26,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1036 states. [2020-09-25 06:46:26,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1036 states to 1036 states and 1283 transitions. [2020-09-25 06:46:26,357 INFO L78 Accepts]: Start accepts. Automaton has 1036 states and 1283 transitions. Word has length 148 [2020-09-25 06:46:26,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:46:26,358 INFO L479 AbstractCegarLoop]: Abstraction has 1036 states and 1283 transitions. [2020-09-25 06:46:26,358 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 06:46:26,358 INFO L276 IsEmpty]: Start isEmpty. Operand 1036 states and 1283 transitions. [2020-09-25 06:46:26,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-09-25 06:46:26,362 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:46:26,363 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:46:26,363 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 06:46:26,363 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:46:26,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:46:26,364 INFO L82 PathProgramCache]: Analyzing trace with hash -240509204, now seen corresponding path program 1 times [2020-09-25 06:46:26,364 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:46:26,364 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [465114724] [2020-09-25 06:46:26,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:46:26,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:46:26,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:26,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:26,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:27,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:29,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:29,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:31,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:46:31,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 175 [2020-09-25 06:46:31,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 06:46:31,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-09-25 06:46:31,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:46:31,407 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:46:31,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:46:31,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 54 [2020-09-25 06:46:31,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-09-25 06:46:31,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:46:31,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:46:31,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:46:31,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:31,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:46:31,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 06:46:31,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:46:31,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 06:46:31,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:46:31,525 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:46:31,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:46:31,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:46:31,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:46:31,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:46:31,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 06:46:31,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:46:31,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:31,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:46:31,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-25 06:46:31,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:46:31,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-25 06:46:31,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:46:31,591 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:46:31,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:46:31,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:46:31,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 06:46:31,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:46:31,663 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:46:31,664 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [465114724] [2020-09-25 06:46:31,664 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 06:46:31,665 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-25 06:46:31,665 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789292147] [2020-09-25 06:46:31,666 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 06:46:31,666 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:46:31,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 06:46:31,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 06:46:31,667 INFO L87 Difference]: Start difference. First operand 1036 states and 1283 transitions. Second operand 5 states. [2020-09-25 06:46:33,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:46:33,836 INFO L93 Difference]: Finished difference Result 2668 states and 3421 transitions. [2020-09-25 06:46:33,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 06:46:33,836 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 164 [2020-09-25 06:46:33,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:46:33,842 INFO L225 Difference]: With dead ends: 2668 [2020-09-25 06:46:33,842 INFO L226 Difference]: Without dead ends: 973 [2020-09-25 06:46:33,848 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-09-25 06:46:33,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 973 states. [2020-09-25 06:46:33,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 973 to 963. [2020-09-25 06:46:33,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 963 states. [2020-09-25 06:46:33,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 963 states to 963 states and 1177 transitions. [2020-09-25 06:46:33,877 INFO L78 Accepts]: Start accepts. Automaton has 963 states and 1177 transitions. Word has length 164 [2020-09-25 06:46:33,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:46:33,878 INFO L479 AbstractCegarLoop]: Abstraction has 963 states and 1177 transitions. [2020-09-25 06:46:33,878 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 06:46:33,878 INFO L276 IsEmpty]: Start isEmpty. Operand 963 states and 1177 transitions. [2020-09-25 06:46:33,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-09-25 06:46:33,883 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:46:33,883 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:46:33,883 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 06:46:33,884 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:46:33,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:46:33,884 INFO L82 PathProgramCache]: Analyzing trace with hash -1330770896, now seen corresponding path program 1 times [2020-09-25 06:46:33,884 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:46:33,885 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1689539875] [2020-09-25 06:46:33,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:46:33,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:46:33,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:34,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:34,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:35,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:35,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:38,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:46:38,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-09-25 06:46:38,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 06:46:38,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-25 06:46:38,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:46:38,913 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:46:38,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 06:46:38,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 59 [2020-09-25 06:46:38,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-25 06:46:38,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:46:39,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:46:39,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:46:39,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:39,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:46:39,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 06:46:39,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:46:39,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 06:46:39,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:46:39,178 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:46:39,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:46:39,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:46:39,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:46:39,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:46:39,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 06:46:39,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:46:39,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:39,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:46:39,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 06:46:39,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:46:39,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-09-25 06:46:39,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:46:39,315 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:46:39,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:46:39,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:46:39,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-25 06:46:39,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:46:39,520 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 28 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:46:39,520 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1689539875] [2020-09-25 06:46:39,521 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 06:46:39,521 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-25 06:46:39,521 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516189696] [2020-09-25 06:46:39,522 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 06:46:39,522 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:46:39,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 06:46:39,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-09-25 06:46:39,523 INFO L87 Difference]: Start difference. First operand 963 states and 1177 transitions. Second operand 8 states. [2020-09-25 06:46:42,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:46:42,857 INFO L93 Difference]: Finished difference Result 3018 states and 3924 transitions. [2020-09-25 06:46:42,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 06:46:42,858 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 168 [2020-09-25 06:46:42,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:46:42,873 INFO L225 Difference]: With dead ends: 3018 [2020-09-25 06:46:42,873 INFO L226 Difference]: Without dead ends: 1984 [2020-09-25 06:46:42,880 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 06:46:42,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1984 states. [2020-09-25 06:46:42,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1984 to 1932. [2020-09-25 06:46:42,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1932 states. [2020-09-25 06:46:42,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1932 states to 1932 states and 2320 transitions. [2020-09-25 06:46:42,952 INFO L78 Accepts]: Start accepts. Automaton has 1932 states and 2320 transitions. Word has length 168 [2020-09-25 06:46:42,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:46:42,952 INFO L479 AbstractCegarLoop]: Abstraction has 1932 states and 2320 transitions. [2020-09-25 06:46:42,953 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 06:46:42,953 INFO L276 IsEmpty]: Start isEmpty. Operand 1932 states and 2320 transitions. [2020-09-25 06:46:42,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2020-09-25 06:46:42,960 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:46:42,960 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:46:42,961 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 06:46:42,961 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:46:42,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:46:42,961 INFO L82 PathProgramCache]: Analyzing trace with hash 935964046, now seen corresponding path program 1 times [2020-09-25 06:46:42,962 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:46:42,962 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1913955025] [2020-09-25 06:46:42,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:46:43,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:46:43,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:43,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:43,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:43,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:43,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:45,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:45,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:48,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:46:48,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-09-25 06:46:48,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 06:46:48,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-09-25 06:46:48,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:46:48,041 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:46:48,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:46:48,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 87 [2020-09-25 06:46:48,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-09-25 06:46:48,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:46:48,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:46:48,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:46:48,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:48,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:46:48,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 06:46:48,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:46:48,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 06:46:48,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:46:48,190 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:46:48,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:46:48,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:46:48,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:46:48,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:46:48,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 06:46:48,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:46:48,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:48,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:46:48,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 06:46:48,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:46:48,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 06:46:48,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:46:48,225 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:46:48,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:46:48,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:46:48,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:46:48,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 06:46:48,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-25 06:46:48,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:46:48,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:48,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:46:48,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-25 06:46:48,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:46:48,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-25 06:46:48,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:46:48,284 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:46:48,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:46:48,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:46:48,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 06:46:48,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:46:48,360 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 46 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-09-25 06:46:48,361 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1913955025] [2020-09-25 06:46:48,361 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 06:46:48,361 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-25 06:46:48,362 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663521850] [2020-09-25 06:46:48,362 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 06:46:48,362 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:46:48,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 06:46:48,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 06:46:48,363 INFO L87 Difference]: Start difference. First operand 1932 states and 2320 transitions. Second operand 5 states. [2020-09-25 06:46:50,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:46:50,145 INFO L93 Difference]: Finished difference Result 4973 states and 6157 transitions. [2020-09-25 06:46:50,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 06:46:50,146 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 192 [2020-09-25 06:46:50,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:46:50,161 INFO L225 Difference]: With dead ends: 4973 [2020-09-25 06:46:50,161 INFO L226 Difference]: Without dead ends: 3063 [2020-09-25 06:46:50,168 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-09-25 06:46:50,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3063 states. [2020-09-25 06:46:50,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3063 to 2994. [2020-09-25 06:46:50,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2994 states. [2020-09-25 06:46:50,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2994 states to 2994 states and 3557 transitions. [2020-09-25 06:46:50,244 INFO L78 Accepts]: Start accepts. Automaton has 2994 states and 3557 transitions. Word has length 192 [2020-09-25 06:46:50,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:46:50,245 INFO L479 AbstractCegarLoop]: Abstraction has 2994 states and 3557 transitions. [2020-09-25 06:46:50,245 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 06:46:50,245 INFO L276 IsEmpty]: Start isEmpty. Operand 2994 states and 3557 transitions. [2020-09-25 06:46:50,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-09-25 06:46:50,253 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:46:50,254 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:46:50,254 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 06:46:50,254 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:46:50,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:46:50,255 INFO L82 PathProgramCache]: Analyzing trace with hash 12118133, now seen corresponding path program 1 times [2020-09-25 06:46:50,255 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:46:50,255 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1106786858] [2020-09-25 06:46:50,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:46:50,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:46:50,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:50,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:50,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:51,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:51,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:53,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:53,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:55,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:46:55,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 212 [2020-09-25 06:46:55,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 06:46:55,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5029 [2020-09-25 06:46:55,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:46:55,311 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:46:55,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:46:55,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-25 06:46:55,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 06:46:55,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:46:55,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:46:55,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:46:55,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:55,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:46:55,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 06:46:55,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:46:55,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 06:46:55,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:46:55,398 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:46:55,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:46:55,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:46:55,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 06:46:55,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:46:55,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 06:46:55,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:46:55,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:55,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:46:55,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 06:46:55,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:46:55,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-09-25 06:46:55,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:46:55,489 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:46:55,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:46:55,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 06:46:55,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-09-25 06:46:55,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:46:55,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-09-25 06:46:55,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:46:55,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:55,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:46:55,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 06:46:55,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:46:55,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 06:46:55,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:46:55,531 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:46:55,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:46:55,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-25 06:46:55,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:46:55,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:46:55,550 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 52 proven. 9 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-09-25 06:46:55,551 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1106786858] [2020-09-25 06:46:55,551 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 06:46:55,551 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 06:46:55,551 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961472742] [2020-09-25 06:46:55,552 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 06:46:55,552 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:46:55,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 06:46:55,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-25 06:46:55,553 INFO L87 Difference]: Start difference. First operand 2994 states and 3557 transitions. Second operand 7 states. [2020-09-25 06:46:57,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:46:57,859 INFO L93 Difference]: Finished difference Result 8677 states and 10452 transitions. [2020-09-25 06:46:57,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 06:46:57,859 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 199 [2020-09-25 06:46:57,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:46:57,883 INFO L225 Difference]: With dead ends: 8677 [2020-09-25 06:46:57,883 INFO L226 Difference]: Without dead ends: 5704 [2020-09-25 06:46:57,893 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-09-25 06:46:57,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5704 states. [2020-09-25 06:46:58,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5704 to 5498. [2020-09-25 06:46:58,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5498 states. [2020-09-25 06:46:58,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5498 states to 5498 states and 6579 transitions. [2020-09-25 06:46:58,026 INFO L78 Accepts]: Start accepts. Automaton has 5498 states and 6579 transitions. Word has length 199 [2020-09-25 06:46:58,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:46:58,027 INFO L479 AbstractCegarLoop]: Abstraction has 5498 states and 6579 transitions. [2020-09-25 06:46:58,027 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 06:46:58,027 INFO L276 IsEmpty]: Start isEmpty. Operand 5498 states and 6579 transitions. [2020-09-25 06:46:58,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-09-25 06:46:58,042 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:46:58,043 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:46:58,043 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 06:46:58,043 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:46:58,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:46:58,044 INFO L82 PathProgramCache]: Analyzing trace with hash 1000558133, now seen corresponding path program 1 times [2020-09-25 06:46:58,044 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:46:58,044 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1771874538] [2020-09-25 06:46:58,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:46:58,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:46:58,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:58,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:58,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:58,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:59,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking...