/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=0.4 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive-simple/fibo_2calls_15-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 05:26:38,690 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 05:26:38,695 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 05:26:38,739 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 05:26:38,740 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 05:26:38,751 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 05:26:38,754 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 05:26:38,757 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 05:26:38,760 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 05:26:38,764 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 05:26:38,765 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 05:26:38,766 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 05:26:38,766 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 05:26:38,769 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 05:26:38,773 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 05:26:38,776 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 05:26:38,777 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 05:26:38,778 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 05:26:38,780 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 05:26:38,787 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 05:26:38,790 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 05:26:38,791 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 05:26:38,792 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 05:26:38,793 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 05:26:38,798 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 05:26:38,798 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 05:26:38,798 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 05:26:38,801 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 05:26:38,802 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 05:26:38,804 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 05:26:38,804 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 05:26:38,805 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 05:26:38,806 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 05:26:38,807 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 05:26:38,808 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 05:26:38,808 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 05:26:38,809 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 05:26:38,809 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 05:26:38,809 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 05:26:38,810 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 05:26:38,811 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 05:26:38,812 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 05:26:38,837 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 05:26:38,837 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 05:26:38,838 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 05:26:38,839 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 05:26:38,839 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 05:26:38,839 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 05:26:38,839 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 05:26:38,840 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 05:26:38,840 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 05:26:38,840 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 05:26:38,840 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 05:26:38,840 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 05:26:38,841 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 05:26:38,841 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 05:26:38,841 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 05:26:38,841 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 05:26:38,841 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 05:26:38,842 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 05:26:38,842 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 05:26:38,842 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 05:26:38,842 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 05:26:38,842 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 05:26:38,843 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 05:26:38,843 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 05:26:38,843 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 05:26:38,843 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 05:26:38,843 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 05:26:38,844 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 05:26:38,844 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 05:26:38,844 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=0.4;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=0.4;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=0.4;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=0.4;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=0.4;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=0.4;log-additional-information=true; [2020-09-25 05:26:39,380 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 05:26:39,406 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 05:26:39,411 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 05:26:39,413 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 05:26:39,416 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 05:26:39,417 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/fibo_2calls_15-2.c [2020-09-25 05:26:39,499 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8c16e9625/9c0b0922c3574a3e8f7ad09623699df0/FLAGb5b300b1f [2020-09-25 05:26:40,034 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 05:26:40,035 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/fibo_2calls_15-2.c [2020-09-25 05:26:40,043 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8c16e9625/9c0b0922c3574a3e8f7ad09623699df0/FLAGb5b300b1f [2020-09-25 05:26:40,376 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8c16e9625/9c0b0922c3574a3e8f7ad09623699df0 [2020-09-25 05:26:40,388 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 05:26:40,392 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 05:26:40,394 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 05:26:40,394 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 05:26:40,398 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 05:26:40,399 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:26:40" (1/1) ... [2020-09-25 05:26:40,404 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c00f55c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:26:40, skipping insertion in model container [2020-09-25 05:26:40,404 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:26:40" (1/1) ... [2020-09-25 05:26:40,413 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 05:26:40,440 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 05:26:40,648 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:26:40,654 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 05:26:40,675 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:26:40,693 INFO L208 MainTranslator]: Completed translation [2020-09-25 05:26:40,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:26:40 WrapperNode [2020-09-25 05:26:40,694 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 05:26:40,695 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 05:26:40,695 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 05:26:40,695 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 05:26:40,712 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:26:40" (1/1) ... [2020-09-25 05:26:40,716 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:26:40" (1/1) ... [2020-09-25 05:26:40,801 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:26:40" (1/1) ... [2020-09-25 05:26:40,801 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:26:40" (1/1) ... [2020-09-25 05:26:40,807 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:26:40" (1/1) ... [2020-09-25 05:26:40,811 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:26:40" (1/1) ... [2020-09-25 05:26:40,816 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:26:40" (1/1) ... [2020-09-25 05:26:40,823 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 05:26:40,823 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 05:26:40,823 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 05:26:40,823 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 05:26:40,824 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:26:40" (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 05:26:40,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 05:26:40,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 05:26:40,892 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2020-09-25 05:26:40,892 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2020-09-25 05:26:40,892 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 05:26:40,893 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 05:26:40,893 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 05:26:40,893 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2020-09-25 05:26:40,893 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2020-09-25 05:26:40,893 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 05:26:40,894 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 05:26:40,894 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 05:26:41,153 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 05:26:41,153 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 05:26:41,158 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:26:41 BoogieIcfgContainer [2020-09-25 05:26:41,159 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 05:26:41,160 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 05:26:41,160 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 05:26:41,164 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 05:26:41,164 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 05:26:40" (1/3) ... [2020-09-25 05:26:41,165 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35320af7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:26:41, skipping insertion in model container [2020-09-25 05:26:41,166 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:26:40" (2/3) ... [2020-09-25 05:26:41,166 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35320af7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:26:41, skipping insertion in model container [2020-09-25 05:26:41,166 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:26:41" (3/3) ... [2020-09-25 05:26:41,168 INFO L109 eAbstractionObserver]: Analyzing ICFG fibo_2calls_15-2.c [2020-09-25 05:26:41,185 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 05:26:41,195 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 05:26:41,221 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 05:26:41,257 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 05:26:41,257 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 05:26:41,258 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 05:26:41,258 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 05:26:41,258 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 05:26:41,258 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 05:26:41,258 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 05:26:41,259 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 05:26:41,285 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2020-09-25 05:26:41,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-25 05:26:41,294 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:26:41,295 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:26:41,296 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:26:41,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:26:41,304 INFO L82 PathProgramCache]: Analyzing trace with hash -1089710179, now seen corresponding path program 1 times [2020-09-25 05:26:41,315 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:26:41,316 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1185430971] [2020-09-25 05:26:41,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:26:41,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:26:41,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:26:41,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:26:41,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 05:26:41,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:26:41,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-09-25 05:26:41,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:26:41,496 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:26:41,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:26:41,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 05:26:41,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 05:26:41,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 05:26:41,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:26:41,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:26:41,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:26:41,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:26:41,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:26:41,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:26:41,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:26:41,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:26:41,560 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:26:41,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:26:41,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:26:41,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:26:41,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:26:41,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 05:26:41,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:26:41,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:26:41,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:26:41,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:26:41,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:26:41,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 05:26:41,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:26:41,595 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:26:41,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:26:41,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 05:26:41,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:26:41,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:26:41,648 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 05:26:41,649 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1185430971] [2020-09-25 05:26:41,651 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:26:41,651 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 05:26:41,653 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878985846] [2020-09-25 05:26:41,658 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 05:26:41,658 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:26:41,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 05:26:41,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 05:26:41,674 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 5 states. [2020-09-25 05:26:41,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:26:41,803 INFO L93 Difference]: Finished difference Result 58 states and 67 transitions. [2020-09-25 05:26:41,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 05:26:41,805 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-25 05:26:41,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:26:41,818 INFO L225 Difference]: With dead ends: 58 [2020-09-25 05:26:41,818 INFO L226 Difference]: Without dead ends: 42 [2020-09-25 05:26:41,823 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 05:26:41,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-09-25 05:26:41,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-09-25 05:26:41,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-09-25 05:26:41,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2020-09-25 05:26:41,875 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 16 [2020-09-25 05:26:41,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:26:41,875 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2020-09-25 05:26:41,876 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 05:26:41,876 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2020-09-25 05:26:41,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-25 05:26:41,878 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:26:41,878 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:26:41,878 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 05:26:41,878 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:26:41,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:26:41,879 INFO L82 PathProgramCache]: Analyzing trace with hash -653728005, now seen corresponding path program 1 times [2020-09-25 05:26:41,879 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:26:41,880 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1056392233] [2020-09-25 05:26:41,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:26:41,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:26:41,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:26:41,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:26:41,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 05:26:41,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:26:41,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-09-25 05:26:41,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:26:41,974 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:26:41,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:26:41,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 05:26:41,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:26:41,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:26:41,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:26:41,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:26:41,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:26:41,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:26:41,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:26:41,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:26:41,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:26:42,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:26:42,000 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:26:42,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:26:42,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:26:42,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:26:42,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:26:42,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 05:26:42,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:26:42,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:26:42,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:26:42,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 05:26:42,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:26:42,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-25 05:26:42,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:26:42,069 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:26:42,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:26:42,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 05:26:42,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 05:26:42,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 05:26:42,111 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 05:26:42,111 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1056392233] [2020-09-25 05:26:42,112 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:26:42,112 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 05:26:42,112 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123699989] [2020-09-25 05:26:42,115 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 05:26:42,116 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:26:42,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 05:26:42,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 05:26:42,116 INFO L87 Difference]: Start difference. First operand 42 states and 49 transitions. Second operand 5 states. [2020-09-25 05:26:42,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:26:42,197 INFO L93 Difference]: Finished difference Result 50 states and 58 transitions. [2020-09-25 05:26:42,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 05:26:42,198 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-09-25 05:26:42,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:26:42,200 INFO L225 Difference]: With dead ends: 50 [2020-09-25 05:26:42,200 INFO L226 Difference]: Without dead ends: 44 [2020-09-25 05:26:42,201 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 05:26:42,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-09-25 05:26:42,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 42. [2020-09-25 05:26:42,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-09-25 05:26:42,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2020-09-25 05:26:42,216 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 17 [2020-09-25 05:26:42,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:26:42,217 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2020-09-25 05:26:42,217 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 05:26:42,217 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2020-09-25 05:26:42,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-09-25 05:26:42,219 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:26:42,219 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-25 05:26:42,219 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 05:26:42,220 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:26:42,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:26:42,220 INFO L82 PathProgramCache]: Analyzing trace with hash -1617834856, now seen corresponding path program 1 times [2020-09-25 05:26:42,220 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:26:42,221 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [455032673] [2020-09-25 05:26:42,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:26:42,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:26:42,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:26:42,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:26:42,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:26:42,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:26:42,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-25 05:26:42,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 05:26:42,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 585 [2020-09-25 05:26:42,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:26:42,823 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:26:42,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 05:26:42,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 05:26:42,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 05:26:42,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:26:42,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:26:42,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:26:42,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:26:42,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:26:42,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:26:42,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:26:42,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:26:42,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:26:42,843 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:26:42,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:26:42,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:26:42,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:26:42,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:26:42,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 05:26:42,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:26:42,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:26:42,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:26:42,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:26:43,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:26:43,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 05:26:43,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 05:26:43,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 207 [2020-09-25 05:26:43,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:26:43,061 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:26:43,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 05:26:43,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 05:26:43,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 05:26:43,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:26:43,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 05:26:43,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:26:43,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:26:43,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:26:43,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:26:43,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:26:43,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 05:26:43,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:26:43,099 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:26:43,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:26:43,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:26:43,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:26:43,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:26:43,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 05:26:43,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:26:43,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:26:43,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:26:43,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:26:43,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:26:43,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 05:26:43,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:26:43,116 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:26:43,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:26:43,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:26:43,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 05:26:43,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:26:43,140 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 05:26:43,141 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [455032673] [2020-09-25 05:26:43,141 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:26:43,141 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 05:26:43,142 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504434103] [2020-09-25 05:26:43,142 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 05:26:43,142 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:26:43,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 05:26:43,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 05:26:43,143 INFO L87 Difference]: Start difference. First operand 42 states and 49 transitions. Second operand 7 states. [2020-09-25 05:26:43,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:26:43,270 INFO L93 Difference]: Finished difference Result 58 states and 69 transitions. [2020-09-25 05:26:43,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 05:26:43,271 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2020-09-25 05:26:43,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:26:43,273 INFO L225 Difference]: With dead ends: 58 [2020-09-25 05:26:43,273 INFO L226 Difference]: Without dead ends: 52 [2020-09-25 05:26:43,274 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-25 05:26:43,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-09-25 05:26:43,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 50. [2020-09-25 05:26:43,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-09-25 05:26:43,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 60 transitions. [2020-09-25 05:26:43,285 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 60 transitions. Word has length 33 [2020-09-25 05:26:43,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:26:43,285 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 60 transitions. [2020-09-25 05:26:43,285 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 05:26:43,286 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 60 transitions. [2020-09-25 05:26:43,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-25 05:26:43,288 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:26:43,288 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-25 05:26:43,288 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 05:26:43,288 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:26:43,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:26:43,289 INFO L82 PathProgramCache]: Analyzing trace with hash 186293384, now seen corresponding path program 1 times [2020-09-25 05:26:43,289 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:26:43,289 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [796516538] [2020-09-25 05:26:43,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:26:43,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:26:43,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:26:43,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:26:43,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:26:43,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:26:43,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:26:43,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 05:26:43,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 05:26:43,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 502 [2020-09-25 05:26:43,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:26:43,802 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:26:43,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 05:26:43,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 05:26:43,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 05:26:43,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:26:43,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:26:43,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:26:43,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:26:43,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:26:43,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:26:43,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:26:43,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:26:43,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:26:43,826 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:26:43,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:26:43,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:26:43,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:26:43,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:26:43,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 05:26:43,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:26:43,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:26:43,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:26:43,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:26:44,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:26:44,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:26:44,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 05:26:44,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 05:26:44,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 388 [2020-09-25 05:26:44,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:26:44,224 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:26:44,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 05:26:44,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 05:26:44,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 05:26:44,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:26:44,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 05:26:44,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:26:44,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:26:44,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:26:44,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 05:26:44,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:26:44,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 05:26:44,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:26:44,271 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:26:44,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:26:44,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:26:44,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 05:26:44,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:26:44,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 05:26:44,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:26:44,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:26:44,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:26:44,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 05:26:44,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:26:44,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 05:26:44,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:26:44,307 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:26:44,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:26:44,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:26:44,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 05:26:44,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:26:44,312 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 05:26:44,313 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [796516538] [2020-09-25 05:26:44,313 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 05:26:44,313 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 05:26:44,314 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638970258] [2020-09-25 05:26:44,314 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 05:26:44,314 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:26:44,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 05:26:44,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 05:26:44,315 INFO L87 Difference]: Start difference. First operand 50 states and 60 transitions. Second operand 7 states. [2020-09-25 05:26:44,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:26:44,444 INFO L93 Difference]: Finished difference Result 110 states and 146 transitions. [2020-09-25 05:26:44,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 05:26:44,445 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2020-09-25 05:26:44,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:26:44,447 INFO L225 Difference]: With dead ends: 110 [2020-09-25 05:26:44,447 INFO L226 Difference]: Without dead ends: 66 [2020-09-25 05:26:44,449 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-25 05:26:44,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-09-25 05:26:44,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 54. [2020-09-25 05:26:44,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-09-25 05:26:44,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 68 transitions. [2020-09-25 05:26:44,463 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 68 transitions. Word has length 35 [2020-09-25 05:26:44,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:26:44,463 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 68 transitions. [2020-09-25 05:26:44,463 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 05:26:44,463 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 68 transitions. [2020-09-25 05:26:44,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-25 05:26:44,466 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:26:44,467 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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 05:26:44,467 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 05:26:44,467 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:26:44,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:26:44,468 INFO L82 PathProgramCache]: Analyzing trace with hash 758565477, now seen corresponding path program 1 times [2020-09-25 05:26:44,468 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:26:44,468 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1829655489] [2020-09-25 05:26:44,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:26:44,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:26:44,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:26:44,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:26:44,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:26:44,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:26:44,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:26:44,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:26:44,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:26:49,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:26:49,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-09-25 05:26:49,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 05:26:49,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-25 05:26:49,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:26:49,485 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:26:49,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 05:26:49,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 05:26:49,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-25 05:26:49,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:26:49,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:26:49,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:26:49,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:26:49,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:26:49,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:26:49,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:26:49,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:26:49,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:26:49,504 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:26:49,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:26:49,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:26:49,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:26:49,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:26:49,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 05:26:49,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:26:49,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:26:49,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:26:49,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:26:49,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:26:50,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:26:50,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:26:50,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:26:53,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:26:53,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 05:26:53,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 05:26:53,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4231 [2020-09-25 05:26:53,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:26:53,744 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:26:53,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 05:26:53,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 05:26:53,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 05:26:53,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:26:53,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 05:26:53,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:26:53,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:26:53,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:26:53,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:26:53,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:26:53,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 05:26:53,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 05:26:53,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-09-25 05:26:53,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:26:53,869 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:26:53,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:26:53,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:26:53,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 05:26:53,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:26:53,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 05:26:53,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:26:53,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:26:53,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:26:53,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:26:53,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:26:53,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:26:53,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:26:53,880 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:26:53,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:26:53,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:26:53,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:26:53,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:26:53,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 05:26:53,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:26:53,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:26:53,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:26:53,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:26:53,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:26:53,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:26:53,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:26:53,888 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:26:53,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:26:53,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:26:53,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:26:53,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:26:53,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 05:26:53,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:26:53,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:26:53,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:26:53,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 05:26:53,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:26:53,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 05:26:53,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:26:53,916 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:26:53,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:26:53,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:26:53,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 05:26:53,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:26:53,953 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-25 05:26:53,953 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1829655489] [2020-09-25 05:26:53,954 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 05:26:53,954 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 05:26:53,954 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646295984] [2020-09-25 05:26:53,955 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 05:26:53,955 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:26:53,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 05:26:53,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-25 05:26:53,956 INFO L87 Difference]: Start difference. First operand 54 states and 68 transitions. Second operand 7 states. [2020-09-25 05:26:54,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:26:54,074 INFO L93 Difference]: Finished difference Result 72 states and 88 transitions. [2020-09-25 05:26:54,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 05:26:54,075 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2020-09-25 05:26:54,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:26:54,077 INFO L225 Difference]: With dead ends: 72 [2020-09-25 05:26:54,077 INFO L226 Difference]: Without dead ends: 66 [2020-09-25 05:26:54,078 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-25 05:26:54,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-09-25 05:26:54,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 54. [2020-09-25 05:26:54,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-09-25 05:26:54,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 68 transitions. [2020-09-25 05:26:54,090 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 68 transitions. Word has length 51 [2020-09-25 05:26:54,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:26:54,090 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 68 transitions. [2020-09-25 05:26:54,091 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 05:26:54,091 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 68 transitions. [2020-09-25 05:26:54,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-09-25 05:26:54,093 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:26:54,094 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 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] [2020-09-25 05:26:54,094 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 05:26:54,094 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:26:54,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:26:54,094 INFO L82 PathProgramCache]: Analyzing trace with hash 1879014210, now seen corresponding path program 1 times [2020-09-25 05:26:54,095 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:26:54,095 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1230564358] [2020-09-25 05:26:54,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:26:54,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:26:54,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:26:54,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:26:54,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:26:54,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:26:54,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:26:54,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:26:54,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:26:54,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:26:55,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:26:55,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:26:59,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:26:59,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-09-25 05:26:59,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-25 05:26:59,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 05:26:59,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:26:59,106 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:26:59,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:26:59,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 52 [2020-09-25 05:26:59,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:26:59,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:26:59,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:26:59,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:26:59,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:26:59,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:26:59,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:26:59,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:26:59,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:26:59,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:26:59,118 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:26:59,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:26:59,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:26:59,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:26:59,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:26:59,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 05:26:59,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:26:59,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:26:59,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:26:59,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:26:59,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:26:59,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:26:59,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:26:59,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:00,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:00,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:04,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:27:04,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-25 05:27:04,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-25 05:27:04,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 05:27:04,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:27:04,125 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:27:04,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:27:04,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-09-25 05:27:04,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:27:04,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:27:04,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 05:27:04,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:27:04,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:04,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:04,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:27:04,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 05:27:04,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 05:27:04,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-25 05:27:04,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:27:04,184 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:27:04,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:27:04,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:27:04,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:27:04,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:27:04,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 05:27:04,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:27:04,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:04,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:27:04,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:27:04,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:27:04,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:27:04,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:27:04,191 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:27:04,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:27:04,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:27:04,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:27:04,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:27:04,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 05:27:04,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:27:04,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:04,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:27:04,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:27:04,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:27:04,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:27:04,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:27:04,199 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:27:04,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:27:04,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:27:04,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:27:04,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:27:04,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 05:27:04,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:27:04,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:04,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:27:04,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 05:27:04,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:27:04,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-25 05:27:04,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:27:04,239 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:27:04,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:27:04,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 05:27:04,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:27:04,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:27:04,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 05:27:04,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:27:04,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:04,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:27:04,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:27:04,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:27:04,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:27:04,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:27:04,268 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:27:04,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:27:04,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 05:27:04,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:27:04,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:27:04,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 05:27:04,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:27:04,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:04,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:27:04,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:27:04,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:27:04,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:27:04,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:27:04,292 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:27:04,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:27:04,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:27:04,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:27:04,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:27:04,301 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 27 proven. 4 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2020-09-25 05:27:04,301 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1230564358] [2020-09-25 05:27:04,301 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 05:27:04,301 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-25 05:27:04,302 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271013804] [2020-09-25 05:27:04,302 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 05:27:04,302 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:27:04,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 05:27:04,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 05:27:04,303 INFO L87 Difference]: Start difference. First operand 54 states and 68 transitions. Second operand 6 states. [2020-09-25 05:27:04,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:27:04,376 INFO L93 Difference]: Finished difference Result 104 states and 141 transitions. [2020-09-25 05:27:04,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 05:27:04,376 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 67 [2020-09-25 05:27:04,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:27:04,378 INFO L225 Difference]: With dead ends: 104 [2020-09-25 05:27:04,378 INFO L226 Difference]: Without dead ends: 56 [2020-09-25 05:27:04,380 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-25 05:27:04,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-09-25 05:27:04,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2020-09-25 05:27:04,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-09-25 05:27:04,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 70 transitions. [2020-09-25 05:27:04,389 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 70 transitions. Word has length 67 [2020-09-25 05:27:04,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:27:04,390 INFO L479 AbstractCegarLoop]: Abstraction has 56 states and 70 transitions. [2020-09-25 05:27:04,390 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 05:27:04,390 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 70 transitions. [2020-09-25 05:27:04,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-09-25 05:27:04,392 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:27:04,393 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 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] [2020-09-25 05:27:04,393 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 05:27:04,393 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:27:04,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:27:04,393 INFO L82 PathProgramCache]: Analyzing trace with hash -387134248, now seen corresponding path program 1 times [2020-09-25 05:27:04,394 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:27:04,394 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [560194274] [2020-09-25 05:27:04,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:27:04,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:27:04,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:04,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:04,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:04,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:04,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:04,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:05,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:05,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:06,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:07,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:08,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:08,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:08,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:09,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:27:09,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-09-25 05:27:09,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-09-25 05:27:09,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 05:27:09,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:27:09,402 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:27:09,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 05:27:09,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 05:27:09,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-09-25 05:27:09,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:27:09,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:27:09,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:27:09,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:09,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:27:09,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:27:09,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:27:09,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:27:09,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:27:09,416 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:27:09,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:27:09,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:27:09,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:27:09,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:27:09,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 05:27:09,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:27:09,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:09,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:09,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:09,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:09,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:10,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:10,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:10,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:10,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:12,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:12,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:13,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:13,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:14,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:27:14,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-25 05:27:14,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-09-25 05:27:14,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 05:27:14,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:27:14,426 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:27:14,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 05:27:14,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 05:27:14,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-25 05:27:14,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:27:14,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 05:27:14,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:27:14,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:14,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:14,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:27:14,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 05:27:14,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 05:27:14,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 216 [2020-09-25 05:27:14,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:27:14,678 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:27:14,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 05:27:14,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:27:14,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 05:27:14,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:27:14,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 05:27:14,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:27:14,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:14,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:27:14,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 05:27:14,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:27:14,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 05:27:14,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:27:14,728 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:27:14,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:27:14,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:27:14,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 05:27:14,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:27:14,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 05:27:14,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:27:14,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:14,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:27:14,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:27:14,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:27:14,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 05:27:14,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:27:14,754 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:27:14,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:27:14,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:27:14,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:27:14,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:27:14,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 05:27:14,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:27:14,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:14,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:27:14,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 05:27:14,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:27:14,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 05:27:14,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:27:14,785 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:27:14,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:27:14,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:27:14,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 05:27:14,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:27:14,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 05:27:14,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:27:14,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:14,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:27:14,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 05:27:14,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:27:14,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:27:14,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:27:14,797 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:27:14,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:27:14,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:27:14,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:27:14,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:27:14,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 05:27:14,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:27:14,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:14,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:27:14,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:27:14,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:27:14,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:27:14,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:27:14,806 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:27:14,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:27:14,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:27:14,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:27:14,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:27:14,819 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 6 proven. 28 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2020-09-25 05:27:14,820 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [560194274] [2020-09-25 05:27:14,820 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 05:27:14,820 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-25 05:27:14,821 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262386892] [2020-09-25 05:27:14,821 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 05:27:14,821 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:27:14,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 05:27:14,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 05:27:14,822 INFO L87 Difference]: Start difference. First operand 56 states and 70 transitions. Second operand 8 states. [2020-09-25 05:27:15,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:27:15,026 INFO L93 Difference]: Finished difference Result 90 states and 124 transitions. [2020-09-25 05:27:15,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 05:27:15,026 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 69 [2020-09-25 05:27:15,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:27:15,028 INFO L225 Difference]: With dead ends: 90 [2020-09-25 05:27:15,029 INFO L226 Difference]: Without dead ends: 84 [2020-09-25 05:27:15,033 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-09-25 05:27:15,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2020-09-25 05:27:15,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 70. [2020-09-25 05:27:15,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-09-25 05:27:15,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 95 transitions. [2020-09-25 05:27:15,061 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 95 transitions. Word has length 69 [2020-09-25 05:27:15,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:27:15,063 INFO L479 AbstractCegarLoop]: Abstraction has 70 states and 95 transitions. [2020-09-25 05:27:15,063 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 05:27:15,064 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 95 transitions. [2020-09-25 05:27:15,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-09-25 05:27:15,065 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:27:15,065 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-09-25 05:27:15,065 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 05:27:15,067 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:27:15,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:27:15,067 INFO L82 PathProgramCache]: Analyzing trace with hash 2120760888, now seen corresponding path program 1 times [2020-09-25 05:27:15,068 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:27:15,068 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [477582690] [2020-09-25 05:27:15,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:27:15,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:27:15,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:15,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:15,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:15,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:15,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:15,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:15,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:15,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:15,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:15,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:17,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:17,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:17,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:20,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:27:20,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-09-25 05:27:20,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-09-25 05:27:20,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-25 05:27:20,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:27:20,087 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:27:20,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 05:27:20,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-09-25 05:27:20,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-25 05:27:20,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:27:20,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:27:20,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:27:20,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:20,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:27:20,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:27:20,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:27:20,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:27:20,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:27:20,096 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:27:20,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:27:20,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:27:20,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:27:20,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:27:20,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 05:27:20,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:27:20,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:20,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:20,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:20,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:20,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:20,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:20,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:20,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:20,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:20,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:20,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:20,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:21,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:25,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:27:25,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-09-25 05:27:25,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-09-25 05:27:25,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-09-25 05:27:25,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:27:25,113 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:27:25,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:27:25,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 05:27:25,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:27:25,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:27:25,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 05:27:25,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:27:25,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:25,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:25,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:25,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:25,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:27:25,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-25 05:27:25,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 05:27:25,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 606 [2020-09-25 05:27:25,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:27:25,731 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:27:25,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 05:27:25,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 05:27:25,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-25 05:27:25,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:27:25,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 05:27:25,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:27:25,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:25,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:25,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:27:25,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 05:27:25,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 05:27:25,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-25 05:27:25,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:27:25,805 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:27:25,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:27:25,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:27:25,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 05:27:25,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:27:25,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 05:27:25,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:27:25,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:25,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:27:25,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:27:25,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:27:25,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 05:27:25,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:27:25,883 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:27:25,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:27:25,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:27:25,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:27:25,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:27:25,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 05:27:25,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:27:25,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:25,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:27:25,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:27:25,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:27:25,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 05:27:25,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:27:25,894 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:27:25,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:27:25,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:27:25,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:27:25,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:27:25,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 05:27:25,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:27:25,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:25,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:27:25,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:27:25,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:27:25,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:27:25,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:27:25,904 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:27:25,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:27:25,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 05:27:25,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:27:25,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:27:25,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-25 05:27:25,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:27:25,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:25,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:25,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:26,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:26,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:26,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:27:26,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-25 05:27:26,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 05:27:26,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 690 [2020-09-25 05:27:26,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:27:26,627 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:27:26,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:27:26,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 50 [2020-09-25 05:27:26,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:27:26,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:27:26,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 05:27:26,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:27:26,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:26,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:26,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:27:26,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 05:27:26,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 05:27:26,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-25 05:27:26,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:27:26,676 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:27:26,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:27:26,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:27:26,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:27:26,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:27:26,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 05:27:26,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:27:26,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:26,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:27:26,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:27:26,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:27:26,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:27:26,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:27:26,683 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:27:26,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:27:26,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:27:26,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:27:26,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:27:26,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 05:27:26,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:27:26,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:26,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:27:26,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:27:26,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:27:26,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:27:26,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:27:26,689 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:27:26,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:27:26,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:27:26,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:27:26,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:27:26,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 05:27:26,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:27:26,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:26,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:27:26,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:27:26,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:27:26,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:27:26,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:27:26,695 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:27:26,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:27:26,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:27:26,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:27:26,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:27:26,704 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 27 proven. 37 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2020-09-25 05:27:26,704 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [477582690] [2020-09-25 05:27:26,704 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 05:27:26,704 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-25 05:27:26,705 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822690340] [2020-09-25 05:27:26,705 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 05:27:26,705 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:27:26,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 05:27:26,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-09-25 05:27:26,706 INFO L87 Difference]: Start difference. First operand 70 states and 95 transitions. Second operand 8 states. [2020-09-25 05:27:26,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:27:26,882 INFO L93 Difference]: Finished difference Result 142 states and 215 transitions. [2020-09-25 05:27:26,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 05:27:26,883 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 101 [2020-09-25 05:27:26,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:27:26,885 INFO L225 Difference]: With dead ends: 142 [2020-09-25 05:27:26,885 INFO L226 Difference]: Without dead ends: 78 [2020-09-25 05:27:26,886 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2020-09-25 05:27:26,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2020-09-25 05:27:26,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 72. [2020-09-25 05:27:26,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-09-25 05:27:26,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 99 transitions. [2020-09-25 05:27:26,898 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 99 transitions. Word has length 101 [2020-09-25 05:27:26,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:27:26,898 INFO L479 AbstractCegarLoop]: Abstraction has 72 states and 99 transitions. [2020-09-25 05:27:26,898 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 05:27:26,898 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 99 transitions. [2020-09-25 05:27:26,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-09-25 05:27:26,900 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:27:26,900 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 2, 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] [2020-09-25 05:27:26,900 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 05:27:26,900 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:27:26,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:27:26,901 INFO L82 PathProgramCache]: Analyzing trace with hash -594280133, now seen corresponding path program 1 times [2020-09-25 05:27:26,901 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:27:26,902 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1418604324] [2020-09-25 05:27:26,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:27:26,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:27:26,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:26,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:26,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:26,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:27,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:27,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:28,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:28,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:29,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:30,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:30,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:30,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:30,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:31,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:31,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:31,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:27:31,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-25 05:27:31,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-09-25 05:27:31,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-09-25 05:27:31,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:27:31,918 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:27:31,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:27:31,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-09-25 05:27:31,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:27:31,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:27:31,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:27:31,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:27:31,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:31,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:27:31,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:27:31,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:27:31,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:27:31,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:27:31,930 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:27:31,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:27:31,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:27:31,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:27:31,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:27:31,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 05:27:31,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:27:31,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:31,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:31,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:32,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:32,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:32,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:32,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:32,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:32,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:36,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:27:36,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-09-25 05:27:36,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-25 05:27:36,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-25 05:27:36,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:27:36,943 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:27:36,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:27:36,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 05:27:36,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:27:36,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:27:36,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 05:27:36,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:27:36,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:36,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:36,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:36,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking...