/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=0.2 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label02.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 04:29:05,635 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 04:29:05,638 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 04:29:05,665 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 04:29:05,666 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 04:29:05,667 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 04:29:05,668 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 04:29:05,670 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 04:29:05,672 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 04:29:05,673 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 04:29:05,674 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 04:29:05,676 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 04:29:05,676 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 04:29:05,679 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 04:29:05,680 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 04:29:05,681 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 04:29:05,682 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 04:29:05,683 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 04:29:05,685 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 04:29:05,687 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 04:29:05,689 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 04:29:05,690 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 04:29:05,691 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 04:29:05,692 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 04:29:05,695 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 04:29:05,695 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 04:29:05,695 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 04:29:05,696 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 04:29:05,697 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 04:29:05,698 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 04:29:05,698 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 04:29:05,699 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 04:29:05,700 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 04:29:05,701 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 04:29:05,702 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 04:29:05,702 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 04:29:05,703 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 04:29:05,703 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 04:29:05,703 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 04:29:05,704 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 04:29:05,705 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 04:29:05,706 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 04:29:05,731 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 04:29:05,731 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 04:29:05,732 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 04:29:05,732 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 04:29:05,733 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 04:29:05,733 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 04:29:05,733 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 04:29:05,733 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 04:29:05,734 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 04:29:05,734 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 04:29:05,734 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 04:29:05,734 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 04:29:05,734 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 04:29:05,735 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 04:29:05,735 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 04:29:05,735 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 04:29:05,735 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 04:29:05,735 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 04:29:05,736 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 04:29:05,736 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 04:29:05,736 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 04:29:05,736 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 04:29:05,737 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 04:29:05,737 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 04:29:05,737 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 04:29:05,737 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 04:29:05,737 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 04:29:05,738 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 04:29:05,738 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 04:29:05,738 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=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; [2020-09-25 04:29:06,230 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 04:29:06,249 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 04:29:06,254 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 04:29:06,256 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 04:29:06,256 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 04:29:06,257 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label02.c [2020-09-25 04:29:06,352 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3bed36ede/c7a4f63e115b40c69fae4afecaa923cc/FLAG55275c4c2 [2020-09-25 04:29:07,047 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 04:29:07,048 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem10_label02.c [2020-09-25 04:29:07,062 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3bed36ede/c7a4f63e115b40c69fae4afecaa923cc/FLAG55275c4c2 [2020-09-25 04:29:07,269 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3bed36ede/c7a4f63e115b40c69fae4afecaa923cc [2020-09-25 04:29:07,288 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 04:29:07,295 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 04:29:07,297 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 04:29:07,297 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 04:29:07,303 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 04:29:07,304 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:29:07" (1/1) ... [2020-09-25 04:29:07,309 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cb7919e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:29:07, skipping insertion in model container [2020-09-25 04:29:07,310 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:29:07" (1/1) ... [2020-09-25 04:29:07,319 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 04:29:07,370 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 04:29:07,839 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:29:07,848 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 04:29:08,152 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:29:08,189 INFO L208 MainTranslator]: Completed translation [2020-09-25 04:29:08,190 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:29:08 WrapperNode [2020-09-25 04:29:08,190 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 04:29:08,191 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 04:29:08,191 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 04:29:08,191 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 04:29:08,212 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:29:08" (1/1) ... [2020-09-25 04:29:08,213 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:29:08" (1/1) ... [2020-09-25 04:29:08,233 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:29:08" (1/1) ... [2020-09-25 04:29:08,233 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:29:08" (1/1) ... [2020-09-25 04:29:08,279 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:29:08" (1/1) ... [2020-09-25 04:29:08,292 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:29:08" (1/1) ... [2020-09-25 04:29:08,297 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:29:08" (1/1) ... [2020-09-25 04:29:08,305 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 04:29:08,306 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 04:29:08,306 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 04:29:08,306 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 04:29:08,308 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:29:08" (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 04:29:08,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 04:29:08,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 04:29:08,402 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-09-25 04:29:08,402 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 04:29:08,402 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-09-25 04:29:08,402 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 04:29:08,403 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 04:29:08,404 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-25 04:29:08,404 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 04:29:08,405 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 04:29:08,405 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 04:29:09,866 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 04:29:09,866 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 04:29:09,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:29:09 BoogieIcfgContainer [2020-09-25 04:29:09,875 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 04:29:09,877 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 04:29:09,877 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 04:29:09,880 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 04:29:09,881 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 04:29:07" (1/3) ... [2020-09-25 04:29:09,882 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@600cbf66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:29:09, skipping insertion in model container [2020-09-25 04:29:09,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:29:08" (2/3) ... [2020-09-25 04:29:09,883 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@600cbf66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:29:09, skipping insertion in model container [2020-09-25 04:29:09,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:29:09" (3/3) ... [2020-09-25 04:29:09,885 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label02.c [2020-09-25 04:29:09,897 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 04:29:09,909 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 04:29:09,932 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 04:29:09,967 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 04:29:09,967 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 04:29:09,967 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 04:29:09,967 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 04:29:09,968 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 04:29:09,968 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 04:29:09,968 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 04:29:09,968 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 04:29:10,000 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states. [2020-09-25 04:29:10,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-09-25 04:29:10,013 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:29:10,014 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] [2020-09-25 04:29:10,015 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:29:10,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:29:10,023 INFO L82 PathProgramCache]: Analyzing trace with hash 613515831, now seen corresponding path program 1 times [2020-09-25 04:29:10,034 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:29:10,035 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1079871953] [2020-09-25 04:29:10,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:29:10,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:29:10,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:10,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:11,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:29:11,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-09-25 04:29:11,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:29:11,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 887 [2020-09-25 04:29:11,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:29:11,172 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:29:11,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 04:29:11,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 04:29:11,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 04:29:11,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 04:29:11,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:29:11,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:29:11,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:11,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:29:11,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 04:29:11,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:29:11,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 04:29:11,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:29:11,329 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:29:11,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:29:11,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:29:11,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:29:11,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:29:11,356 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 04:29:11,357 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1079871953] [2020-09-25 04:29:11,359 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:29:11,360 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 04:29:11,361 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603439560] [2020-09-25 04:29:11,367 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 04:29:11,368 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:29:11,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 04:29:11,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 04:29:11,388 INFO L87 Difference]: Start difference. First operand 456 states. Second operand 4 states. [2020-09-25 04:29:13,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:29:13,325 INFO L93 Difference]: Finished difference Result 1104 states and 1521 transitions. [2020-09-25 04:29:13,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 04:29:13,327 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 78 [2020-09-25 04:29:13,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:29:13,350 INFO L225 Difference]: With dead ends: 1104 [2020-09-25 04:29:13,351 INFO L226 Difference]: Without dead ends: 578 [2020-09-25 04:29:13,362 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 2 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 04:29:13,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578 states. [2020-09-25 04:29:13,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578 to 544. [2020-09-25 04:29:13,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 544 states. [2020-09-25 04:29:13,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 655 transitions. [2020-09-25 04:29:13,457 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 655 transitions. Word has length 78 [2020-09-25 04:29:13,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:29:13,458 INFO L479 AbstractCegarLoop]: Abstraction has 544 states and 655 transitions. [2020-09-25 04:29:13,458 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 04:29:13,458 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 655 transitions. [2020-09-25 04:29:13,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-09-25 04:29:13,467 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:29:13,468 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:29:13,468 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 04:29:13,468 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:29:13,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:29:13,469 INFO L82 PathProgramCache]: Analyzing trace with hash 970656551, now seen corresponding path program 1 times [2020-09-25 04:29:13,469 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:29:13,469 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [929347013] [2020-09-25 04:29:13,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:29:13,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:29:13,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:13,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:13,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:14,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:14,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:14,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:15,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:18,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:29:18,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 168 [2020-09-25 04:29:18,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 04:29:18,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-09-25 04:29:18,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:29:18,544 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:29:18,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:29:18,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-09-25 04:29:18,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 04:29:18,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:29:18,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:29:18,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:29:18,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:18,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:29:18,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 04:29:18,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:29:18,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 04:29:18,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:29:18,734 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:29:18,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:29:18,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:29:18,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:29:18,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:29:18,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 04:29:18,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:29:18,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:18,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:29:18,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-09-25 04:29:18,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:29:18,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-09-25 04:29:18,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:29:18,868 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:29:18,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:29:18,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:29:18,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-09-25 04:29:18,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:29:18,938 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 61 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:29:18,938 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [929347013] [2020-09-25 04:29:18,939 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 04:29:18,939 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-25 04:29:18,939 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158164498] [2020-09-25 04:29:18,942 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 04:29:18,942 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:29:18,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 04:29:18,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 04:29:18,943 INFO L87 Difference]: Start difference. First operand 544 states and 655 transitions. Second operand 6 states. [2020-09-25 04:29:21,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:29:21,276 INFO L93 Difference]: Finished difference Result 850 states and 1122 transitions. [2020-09-25 04:29:21,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 04:29:21,280 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 157 [2020-09-25 04:29:21,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:29:21,288 INFO L225 Difference]: With dead ends: 850 [2020-09-25 04:29:21,288 INFO L226 Difference]: Without dead ends: 848 [2020-09-25 04:29:21,290 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-09-25 04:29:21,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 848 states. [2020-09-25 04:29:21,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 848 to 848. [2020-09-25 04:29:21,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 848 states. [2020-09-25 04:29:21,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 848 states to 848 states and 1119 transitions. [2020-09-25 04:29:21,334 INFO L78 Accepts]: Start accepts. Automaton has 848 states and 1119 transitions. Word has length 157 [2020-09-25 04:29:21,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:29:21,335 INFO L479 AbstractCegarLoop]: Abstraction has 848 states and 1119 transitions. [2020-09-25 04:29:21,335 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 04:29:21,335 INFO L276 IsEmpty]: Start isEmpty. Operand 848 states and 1119 transitions. [2020-09-25 04:29:21,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2020-09-25 04:29:21,355 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:29:21,356 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:29:21,356 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 04:29:21,356 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:29:21,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:29:21,357 INFO L82 PathProgramCache]: Analyzing trace with hash -1579224162, now seen corresponding path program 1 times [2020-09-25 04:29:21,357 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:29:21,357 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [31482800] [2020-09-25 04:29:21,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:29:21,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:29:21,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:21,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:22,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:23,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:23,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:26,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:29:26,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 225 [2020-09-25 04:29:26,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 04:29:26,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-09-25 04:29:26,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:29:26,464 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:29:26,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 04:29:26,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 04:29:26,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-09-25 04:29:26,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:29:26,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:29:26,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:29:26,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:26,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:29:26,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 04:29:26,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:29:26,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 04:29:26,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:29:26,544 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:29:26,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:29:26,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:29:26,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 04:29:26,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:29:26,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 04:29:26,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:29:26,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:26,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:29:26,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-09-25 04:29:26,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:29:26,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 224 [2020-09-25 04:29:26,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:29:26,840 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:29:26,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:29:26,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 04:29:26,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 131 [2020-09-25 04:29:26,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:29:27,021 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:29:27,022 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [31482800] [2020-09-25 04:29:27,022 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:29:27,022 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 04:29:27,023 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516666621] [2020-09-25 04:29:27,025 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 04:29:27,026 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:29:27,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 04:29:27,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-25 04:29:27,027 INFO L87 Difference]: Start difference. First operand 848 states and 1119 transitions. Second operand 7 states. [2020-09-25 04:29:29,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:29:29,491 INFO L93 Difference]: Finished difference Result 1942 states and 2690 transitions. [2020-09-25 04:29:29,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 04:29:29,491 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 214 [2020-09-25 04:29:29,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:29:29,508 INFO L225 Difference]: With dead ends: 1942 [2020-09-25 04:29:29,509 INFO L226 Difference]: Without dead ends: 1109 [2020-09-25 04:29:29,515 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-09-25 04:29:29,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1109 states. [2020-09-25 04:29:29,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1109 to 853. [2020-09-25 04:29:29,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 853 states. [2020-09-25 04:29:29,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 853 states to 853 states and 1091 transitions. [2020-09-25 04:29:29,591 INFO L78 Accepts]: Start accepts. Automaton has 853 states and 1091 transitions. Word has length 214 [2020-09-25 04:29:29,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:29:29,596 INFO L479 AbstractCegarLoop]: Abstraction has 853 states and 1091 transitions. [2020-09-25 04:29:29,597 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 04:29:29,597 INFO L276 IsEmpty]: Start isEmpty. Operand 853 states and 1091 transitions. [2020-09-25 04:29:29,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2020-09-25 04:29:29,608 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:29:29,609 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:29:29,609 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 04:29:29,609 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:29:29,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:29:29,610 INFO L82 PathProgramCache]: Analyzing trace with hash 63532064, now seen corresponding path program 1 times [2020-09-25 04:29:29,610 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:29:29,611 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [92373130] [2020-09-25 04:29:29,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:29:29,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:29:29,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:29,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:30,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:30,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:34,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:29:34,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 299 [2020-09-25 04:29:34,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 04:29:34,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5046 [2020-09-25 04:29:34,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:29:34,717 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:29:34,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:29:34,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 96 [2020-09-25 04:29:34,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 129 [2020-09-25 04:29:34,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:29:34,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:29:34,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:29:34,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:34,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:29:34,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 04:29:34,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:29:34,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 04:29:34,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:29:34,889 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:29:34,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:29:34,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:29:34,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:29:34,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:29:34,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 04:29:34,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:29:34,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:35,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:29:35,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-09-25 04:29:35,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:29:35,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-09-25 04:29:35,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:29:35,015 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:29:35,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:29:35,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:29:35,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-09-25 04:29:35,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:29:35,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 04:29:35,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:29:35,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:35,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:29:35,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-09-25 04:29:35,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:29:35,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 281 [2020-09-25 04:29:35,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:29:35,369 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:29:35,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:29:35,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 04:29:35,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-09-25 04:29:35,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:29:35,645 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 197 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 04:29:35,647 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [92373130] [2020-09-25 04:29:35,647 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 04:29:35,648 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 04:29:35,648 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104907247] [2020-09-25 04:29:35,649 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 04:29:35,651 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:29:35,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 04:29:35,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-25 04:29:35,653 INFO L87 Difference]: Start difference. First operand 853 states and 1091 transitions. Second operand 7 states. [2020-09-25 04:29:37,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:29:37,850 INFO L93 Difference]: Finished difference Result 2053 states and 2817 transitions. [2020-09-25 04:29:37,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 04:29:37,851 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 286 [2020-09-25 04:29:37,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:29:37,860 INFO L225 Difference]: With dead ends: 2053 [2020-09-25 04:29:37,860 INFO L226 Difference]: Without dead ends: 1365 [2020-09-25 04:29:37,864 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 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 04:29:37,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1365 states. [2020-09-25 04:29:37,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1365 to 1321. [2020-09-25 04:29:37,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1321 states. [2020-09-25 04:29:37,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1321 states to 1321 states and 1733 transitions. [2020-09-25 04:29:37,935 INFO L78 Accepts]: Start accepts. Automaton has 1321 states and 1733 transitions. Word has length 286 [2020-09-25 04:29:37,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:29:37,936 INFO L479 AbstractCegarLoop]: Abstraction has 1321 states and 1733 transitions. [2020-09-25 04:29:37,936 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 04:29:37,937 INFO L276 IsEmpty]: Start isEmpty. Operand 1321 states and 1733 transitions. [2020-09-25 04:29:37,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2020-09-25 04:29:37,945 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:29:37,945 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:29:37,946 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 04:29:37,946 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:29:37,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:29:37,946 INFO L82 PathProgramCache]: Analyzing trace with hash -2136866632, now seen corresponding path program 1 times [2020-09-25 04:29:37,947 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:29:37,947 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1572078701] [2020-09-25 04:29:37,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:29:38,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:29:38,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:38,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:38,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:38,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:39,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:40,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:40,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:40,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:41,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:41,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:43,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:29:43,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 315 [2020-09-25 04:29:43,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-25 04:29:43,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-09-25 04:29:43,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:29:43,049 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:29:43,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:29:43,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 106 [2020-09-25 04:29:43,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-09-25 04:29:43,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:29:43,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:29:43,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:29:43,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:43,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:29:43,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 04:29:43,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:29:43,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 04:29:43,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:29:43,162 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:29:43,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:29:43,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:29:43,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:29:43,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:29:43,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 04:29:43,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:29:43,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:43,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:29:43,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 04:29:43,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:29:43,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-09-25 04:29:43,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:29:43,301 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:29:43,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:29:43,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:29:43,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 04:29:43,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:29:43,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-09-25 04:29:43,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:29:43,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:43,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:29:43,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-09-25 04:29:43,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:29:43,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 277 [2020-09-25 04:29:43,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:29:43,654 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:29:43,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:29:43,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 04:29:43,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-09-25 04:29:43,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:29:43,923 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 206 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 04:29:43,923 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1572078701] [2020-09-25 04:29:43,924 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 04:29:43,924 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-25 04:29:43,925 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074612109] [2020-09-25 04:29:43,927 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 04:29:43,927 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:29:43,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 04:29:43,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-25 04:29:43,928 INFO L87 Difference]: Start difference. First operand 1321 states and 1733 transitions. Second operand 8 states. [2020-09-25 04:29:46,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:29:46,539 INFO L93 Difference]: Finished difference Result 2655 states and 3549 transitions. [2020-09-25 04:29:46,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 04:29:46,540 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 302 [2020-09-25 04:29:46,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:29:46,546 INFO L225 Difference]: With dead ends: 2655 [2020-09-25 04:29:46,546 INFO L226 Difference]: Without dead ends: 1137 [2020-09-25 04:29:46,552 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2020-09-25 04:29:46,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1137 states. [2020-09-25 04:29:46,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1137 to 957. [2020-09-25 04:29:46,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 957 states. [2020-09-25 04:29:46,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 957 states to 957 states and 1092 transitions. [2020-09-25 04:29:46,585 INFO L78 Accepts]: Start accepts. Automaton has 957 states and 1092 transitions. Word has length 302 [2020-09-25 04:29:46,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:29:46,585 INFO L479 AbstractCegarLoop]: Abstraction has 957 states and 1092 transitions. [2020-09-25 04:29:46,586 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 04:29:46,586 INFO L276 IsEmpty]: Start isEmpty. Operand 957 states and 1092 transitions. [2020-09-25 04:29:46,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2020-09-25 04:29:46,592 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:29:46,592 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:29:46,592 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 04:29:46,592 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:29:46,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:29:46,593 INFO L82 PathProgramCache]: Analyzing trace with hash -669780688, now seen corresponding path program 1 times [2020-09-25 04:29:46,593 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:29:46,594 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1942971834] [2020-09-25 04:29:46,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:29:46,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:29:46,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:46,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:46,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:47,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:47,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:51,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:29:51,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 317 [2020-09-25 04:29:51,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 04:29:51,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-09-25 04:29:51,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:29:51,655 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:29:51,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:29:51,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 107 [2020-09-25 04:29:51,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-09-25 04:29:51,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:29:51,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:29:51,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:29:51,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:51,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:29:51,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 04:29:51,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:29:51,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 04:29:51,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:29:51,745 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:29:51,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:29:51,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:29:51,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:29:51,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:29:51,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 04:29:51,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:29:51,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:51,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:29:51,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-09-25 04:29:51,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:29:51,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-09-25 04:29:51,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:29:51,886 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:29:51,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:29:51,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:29:51,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 04:29:51,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:29:51,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-09-25 04:29:51,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:29:51,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:52,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:29:52,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-09-25 04:29:52,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:29:52,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 204 [2020-09-25 04:29:52,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:29:52,151 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:29:52,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:29:52,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 04:29:52,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-09-25 04:29:52,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:29:52,353 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 208 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 04:29:52,354 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1942971834] [2020-09-25 04:29:52,356 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 04:29:52,356 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 04:29:52,357 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289977792] [2020-09-25 04:29:52,358 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 04:29:52,358 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:29:52,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 04:29:52,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-25 04:29:52,359 INFO L87 Difference]: Start difference. First operand 957 states and 1092 transitions. Second operand 7 states. [2020-09-25 04:29:54,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:29:54,418 INFO L93 Difference]: Finished difference Result 2259 states and 2627 transitions. [2020-09-25 04:29:54,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 04:29:54,419 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 304 [2020-09-25 04:29:54,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:29:54,426 INFO L225 Difference]: With dead ends: 2259 [2020-09-25 04:29:54,426 INFO L226 Difference]: Without dead ends: 1467 [2020-09-25 04:29:54,429 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 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 04:29:54,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1467 states. [2020-09-25 04:29:54,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1467 to 1277. [2020-09-25 04:29:54,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1277 states. [2020-09-25 04:29:54,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1277 states to 1277 states and 1444 transitions. [2020-09-25 04:29:54,461 INFO L78 Accepts]: Start accepts. Automaton has 1277 states and 1444 transitions. Word has length 304 [2020-09-25 04:29:54,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:29:54,462 INFO L479 AbstractCegarLoop]: Abstraction has 1277 states and 1444 transitions. [2020-09-25 04:29:54,462 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 04:29:54,462 INFO L276 IsEmpty]: Start isEmpty. Operand 1277 states and 1444 transitions. [2020-09-25 04:29:54,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 373 [2020-09-25 04:29:54,469 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:29:54,470 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-09-25 04:29:54,470 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 04:29:54,470 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:29:54,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:29:54,471 INFO L82 PathProgramCache]: Analyzing trace with hash -992661779, now seen corresponding path program 1 times [2020-09-25 04:29:54,471 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:29:54,471 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [510998162] [2020-09-25 04:29:54,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:29:54,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:29:54,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:54,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:54,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking...