/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.1 --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_8-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 10:00:41,676 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 10:00:41,679 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 10:00:41,713 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 10:00:41,714 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 10:00:41,722 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 10:00:41,724 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 10:00:41,728 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 10:00:41,730 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 10:00:41,733 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 10:00:41,734 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 10:00:41,735 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 10:00:41,736 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 10:00:41,739 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 10:00:41,741 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 10:00:41,743 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 10:00:41,745 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 10:00:41,746 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 10:00:41,748 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 10:00:41,756 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 10:00:41,758 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 10:00:41,759 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 10:00:41,761 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 10:00:41,762 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 10:00:41,774 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 10:00:41,774 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 10:00:41,775 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 10:00:41,781 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 10:00:41,781 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 10:00:41,785 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 10:00:41,786 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 10:00:41,787 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 10:00:41,788 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 10:00:41,790 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 10:00:41,792 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 10:00:41,792 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 10:00:41,793 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 10:00:41,793 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 10:00:41,793 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 10:00:41,794 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 10:00:41,795 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 10:00:41,796 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 10:00:41,842 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 10:00:41,842 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 10:00:41,845 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 10:00:41,845 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 10:00:41,845 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 10:00:41,845 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 10:00:41,846 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 10:00:41,846 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 10:00:41,846 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 10:00:41,846 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 10:00:41,847 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 10:00:41,848 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 10:00:41,848 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 10:00:41,848 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 10:00:41,848 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 10:00:41,849 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 10:00:41,849 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 10:00:41,849 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 10:00:41,849 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 10:00:41,849 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 10:00:41,850 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 10:00:41,850 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 10:00:41,850 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 10:00:41,850 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 10:00:41,850 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 10:00:41,851 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 10:00:41,851 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 10:00:41,851 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 10:00:41,851 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 10:00:41,851 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; [2020-09-25 10:00:42,295 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 10:00:42,313 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 10:00:42,317 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 10:00:42,319 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 10:00:42,319 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 10:00:42,320 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/fibo_2calls_8-2.c [2020-09-25 10:00:42,411 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fa2d6621f/732afa254e9f4a399930fd0bc90f5c5c/FLAG8dd17ceee [2020-09-25 10:00:42,897 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 10:00:42,898 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/fibo_2calls_8-2.c [2020-09-25 10:00:42,907 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fa2d6621f/732afa254e9f4a399930fd0bc90f5c5c/FLAG8dd17ceee [2020-09-25 10:00:43,255 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fa2d6621f/732afa254e9f4a399930fd0bc90f5c5c [2020-09-25 10:00:43,268 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 10:00:43,277 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 10:00:43,278 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 10:00:43,279 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 10:00:43,283 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 10:00:43,284 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:00:43" (1/1) ... [2020-09-25 10:00:43,288 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63cc40f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:00:43, skipping insertion in model container [2020-09-25 10:00:43,288 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:00:43" (1/1) ... [2020-09-25 10:00:43,297 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 10:00:43,322 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 10:00:43,518 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 10:00:43,522 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 10:00:43,539 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 10:00:43,554 INFO L208 MainTranslator]: Completed translation [2020-09-25 10:00:43,554 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:00:43 WrapperNode [2020-09-25 10:00:43,554 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 10:00:43,555 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 10:00:43,555 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 10:00:43,555 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 10:00:43,568 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:00:43" (1/1) ... [2020-09-25 10:00:43,569 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:00:43" (1/1) ... [2020-09-25 10:00:43,574 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:00:43" (1/1) ... [2020-09-25 10:00:43,574 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:00:43" (1/1) ... [2020-09-25 10:00:43,656 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:00:43" (1/1) ... [2020-09-25 10:00:43,659 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:00:43" (1/1) ... [2020-09-25 10:00:43,660 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:00:43" (1/1) ... [2020-09-25 10:00:43,662 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 10:00:43,663 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 10:00:43,663 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 10:00:43,663 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 10:00:43,664 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:00:43" (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 10:00:43,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 10:00:43,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 10:00:43,742 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2020-09-25 10:00:43,743 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2020-09-25 10:00:43,743 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 10:00:43,743 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 10:00:43,743 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 10:00:43,744 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2020-09-25 10:00:43,744 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2020-09-25 10:00:43,744 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 10:00:43,744 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 10:00:43,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 10:00:44,004 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 10:00:44,005 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 10:00:44,010 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:00:44 BoogieIcfgContainer [2020-09-25 10:00:44,011 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 10:00:44,023 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 10:00:44,023 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 10:00:44,027 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 10:00:44,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 10:00:43" (1/3) ... [2020-09-25 10:00:44,037 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75437766 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:00:44, skipping insertion in model container [2020-09-25 10:00:44,037 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:00:43" (2/3) ... [2020-09-25 10:00:44,038 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75437766 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:00:44, skipping insertion in model container [2020-09-25 10:00:44,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:00:44" (3/3) ... [2020-09-25 10:00:44,044 INFO L109 eAbstractionObserver]: Analyzing ICFG fibo_2calls_8-2.c [2020-09-25 10:00:44,067 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 10:00:44,083 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 10:00:44,103 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 10:00:44,132 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 10:00:44,132 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 10:00:44,132 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 10:00:44,132 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 10:00:44,132 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 10:00:44,132 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 10:00:44,133 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 10:00:44,133 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 10:00:44,153 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2020-09-25 10:00:44,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-25 10:00:44,160 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:00:44,161 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:00:44,162 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:00:44,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:00:44,168 INFO L82 PathProgramCache]: Analyzing trace with hash -1089710179, now seen corresponding path program 1 times [2020-09-25 10:00:44,176 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:00:44,177 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2145520547] [2020-09-25 10:00:44,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:00:44,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:44,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:44,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:44,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:44,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 10:00:44,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 10:00:44,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 210 [2020-09-25 10:00:44,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:44,501 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:44,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 10:00:44,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-25 10:00:44,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:00:44,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 10:00:44,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:00:44,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:44,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:44,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:44,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:00:44,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:44,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 10:00:44,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:44,594 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:44,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:00:44,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:44,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:00:44,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:44,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 10:00:44,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:44,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:44,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:44,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:00:44,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:44,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 10:00:44,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:44,643 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:44,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 10:00:44,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:44,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 10:00:44,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:44,680 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 10:00:44,681 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2145520547] [2020-09-25 10:00:44,684 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:00:44,685 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 10:00:44,686 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686457239] [2020-09-25 10:00:44,693 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 10:00:44,693 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:00:44,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 10:00:44,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 10:00:44,709 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 5 states. [2020-09-25 10:00:44,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:00:44,807 INFO L93 Difference]: Finished difference Result 58 states and 67 transitions. [2020-09-25 10:00:44,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 10:00:44,810 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-25 10:00:44,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:00:44,828 INFO L225 Difference]: With dead ends: 58 [2020-09-25 10:00:44,829 INFO L226 Difference]: Without dead ends: 42 [2020-09-25 10:00:44,834 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 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 10:00:44,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-09-25 10:00:44,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-09-25 10:00:44,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-09-25 10:00:44,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2020-09-25 10:00:44,892 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 16 [2020-09-25 10:00:44,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:00:44,892 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2020-09-25 10:00:44,893 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 10:00:44,893 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2020-09-25 10:00:44,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-25 10:00:44,895 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:00:44,895 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 10:00:44,896 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 10:00:44,896 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:00:44,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:00:44,897 INFO L82 PathProgramCache]: Analyzing trace with hash -653728005, now seen corresponding path program 1 times [2020-09-25 10:00:44,897 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:00:44,898 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [721536756] [2020-09-25 10:00:44,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:00:44,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:44,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:44,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:45,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:45,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 10:00:45,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 10:00:45,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 211 [2020-09-25 10:00:45,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:45,122 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:45,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 10:00:45,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 10:00:45,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:00:45,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:45,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:00:45,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:45,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:45,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:45,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:00:45,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:45,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:00:45,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:45,141 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:45,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:00:45,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:45,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:00:45,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:45,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 10:00:45,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:45,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:45,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:45,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 10:00:45,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:45,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 10:00:45,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:45,172 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:45,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 10:00:45,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 10:00:45,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 10:00:45,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:45,197 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 10:00:45,198 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [721536756] [2020-09-25 10:00:45,198 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:00:45,199 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 10:00:45,199 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784418919] [2020-09-25 10:00:45,201 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 10:00:45,201 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:00:45,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 10:00:45,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 10:00:45,202 INFO L87 Difference]: Start difference. First operand 42 states and 49 transitions. Second operand 5 states. [2020-09-25 10:00:45,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:00:45,265 INFO L93 Difference]: Finished difference Result 50 states and 58 transitions. [2020-09-25 10:00:45,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 10:00:45,265 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-09-25 10:00:45,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:00:45,267 INFO L225 Difference]: With dead ends: 50 [2020-09-25 10:00:45,268 INFO L226 Difference]: Without dead ends: 44 [2020-09-25 10:00:45,269 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 10:00:45,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-09-25 10:00:45,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 42. [2020-09-25 10:00:45,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-09-25 10:00:45,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2020-09-25 10:00:45,279 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 17 [2020-09-25 10:00:45,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:00:45,280 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2020-09-25 10:00:45,280 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 10:00:45,280 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2020-09-25 10:00:45,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-09-25 10:00:45,282 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:00:45,283 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 10:00:45,283 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 10:00:45,283 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:00:45,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:00:45,284 INFO L82 PathProgramCache]: Analyzing trace with hash -1617834856, now seen corresponding path program 1 times [2020-09-25 10:00:45,284 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:00:45,284 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1519546177] [2020-09-25 10:00:45,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:00:45,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:45,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:45,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:45,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:45,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:47,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:47,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-25 10:00:47,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 10:00:47,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1886 [2020-09-25 10:00:47,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:47,184 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:47,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 10:00:47,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 10:00:47,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 10:00:47,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:47,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:00:47,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:47,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:47,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:47,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:00:47,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:47,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:00:47,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:47,202 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:47,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:00:47,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:47,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:00:47,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:47,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 10:00:47,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:47,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:47,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:47,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:47,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:47,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 10:00:47,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 10:00:47,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 176 [2020-09-25 10:00:47,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:47,396 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:47,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 10:00:47,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 10:00:47,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 10:00:47,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:47,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 10:00:47,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:47,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:47,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:47,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:00:47,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:47,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 10:00:47,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:47,438 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:47,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:00:47,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:47,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:00:47,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:47,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 10:00:47,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:47,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:47,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:47,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:00:47,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:47,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 10:00:47,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:47,462 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:47,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:00:47,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:47,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 10:00:47,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:47,496 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 10:00:47,497 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1519546177] [2020-09-25 10:00:47,497 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:00:47,497 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 10:00:47,497 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097188894] [2020-09-25 10:00:47,498 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 10:00:47,498 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:00:47,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 10:00:47,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 10:00:47,504 INFO L87 Difference]: Start difference. First operand 42 states and 49 transitions. Second operand 7 states. [2020-09-25 10:00:47,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:00:47,659 INFO L93 Difference]: Finished difference Result 58 states and 69 transitions. [2020-09-25 10:00:47,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 10:00:47,660 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2020-09-25 10:00:47,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:00:47,662 INFO L225 Difference]: With dead ends: 58 [2020-09-25 10:00:47,662 INFO L226 Difference]: Without dead ends: 52 [2020-09-25 10:00:47,663 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 10:00:47,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-09-25 10:00:47,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 50. [2020-09-25 10:00:47,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-09-25 10:00:47,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 60 transitions. [2020-09-25 10:00:47,674 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 60 transitions. Word has length 33 [2020-09-25 10:00:47,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:00:47,674 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 60 transitions. [2020-09-25 10:00:47,674 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 10:00:47,675 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 60 transitions. [2020-09-25 10:00:47,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-25 10:00:47,681 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:00:47,681 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 10:00:47,682 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 10:00:47,682 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:00:47,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:00:47,682 INFO L82 PathProgramCache]: Analyzing trace with hash 186293384, now seen corresponding path program 1 times [2020-09-25 10:00:47,682 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:00:47,683 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2052924144] [2020-09-25 10:00:47,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:00:47,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:47,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:47,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:47,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:47,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:47,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:49,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:49,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 10:00:49,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 10:00:49,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1579 [2020-09-25 10:00:49,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:49,272 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:49,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 10:00:49,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 10:00:49,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 10:00:49,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:49,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:00:49,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:49,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:49,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:49,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:00:49,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:49,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 10:00:49,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:49,289 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:49,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:00:49,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:49,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:00:49,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 10:00:49,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 10:00:49,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:49,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:49,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:49,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:49,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:49,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:49,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 10:00:49,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 10:00:49,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 424 [2020-09-25 10:00:49,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:49,728 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:49,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 10:00:49,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 10:00:49,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 10:00:49,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:49,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 10:00:49,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:49,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:49,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:49,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 10:00:49,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:49,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 10:00:49,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:49,773 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:49,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:00:49,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:49,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 10:00:49,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:49,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 10:00:49,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:49,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:49,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:49,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 10:00:49,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:49,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 10:00:49,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:49,814 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:49,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:00:49,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:49,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 10:00:49,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:49,820 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 10:00:49,821 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2052924144] [2020-09-25 10:00:49,821 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 10:00:49,821 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 10:00:49,821 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112246997] [2020-09-25 10:00:49,822 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 10:00:49,822 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:00:49,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 10:00:49,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-25 10:00:49,823 INFO L87 Difference]: Start difference. First operand 50 states and 60 transitions. Second operand 7 states. [2020-09-25 10:00:49,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:00:49,945 INFO L93 Difference]: Finished difference Result 72 states and 89 transitions. [2020-09-25 10:00:49,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 10:00:49,946 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2020-09-25 10:00:49,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:00:49,948 INFO L225 Difference]: With dead ends: 72 [2020-09-25 10:00:49,948 INFO L226 Difference]: Without dead ends: 66 [2020-09-25 10:00:49,949 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 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 10:00:49,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-09-25 10:00:49,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 52. [2020-09-25 10:00:49,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-09-25 10:00:49,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 64 transitions. [2020-09-25 10:00:49,960 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 64 transitions. Word has length 35 [2020-09-25 10:00:49,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:00:49,961 INFO L479 AbstractCegarLoop]: Abstraction has 52 states and 64 transitions. [2020-09-25 10:00:49,961 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 10:00:49,961 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 64 transitions. [2020-09-25 10:00:49,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-25 10:00:49,963 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:00:49,963 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 10:00:49,963 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 10:00:49,964 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:00:49,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:00:49,964 INFO L82 PathProgramCache]: Analyzing trace with hash 758565477, now seen corresponding path program 1 times [2020-09-25 10:00:49,964 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:00:49,965 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1460918915] [2020-09-25 10:00:49,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:00:49,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:49,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:49,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:50,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:50,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:50,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:50,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:50,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:53,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:54,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:54,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-09-25 10:00:54,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 10:00:54,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 10:00:54,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:54,974 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:54,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 10:00:54,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 10:00:54,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-25 10:00:54,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:54,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:00:54,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:54,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:54,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:54,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:00:54,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:54,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:00:54,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:54,999 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:55,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:00:55,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:55,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:00:55,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:55,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 10:00:55,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:55,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:55,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:55,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:55,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:55,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:55,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:55,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:58,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:58,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 10:00:58,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 10:00:58,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3284 [2020-09-25 10:00:58,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:58,301 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:58,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 10:00:58,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 10:00:58,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 10:00:58,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:58,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 10:00:58,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:58,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:58,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:58,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:58,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:58,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 10:00:58,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 10:00:58,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-09-25 10:00:58,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:58,501 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:58,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:00:58,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:58,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 10:00:58,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 11 [2020-09-25 10:00:58,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 10:00:58,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:58,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:58,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:58,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:00:58,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:58,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:00:58,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:58,517 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:58,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:00:58,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:58,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:00:58,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 10:00:58,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 10:00:58,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:58,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:58,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:58,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:00:58,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:58,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:00:58,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:58,528 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:58,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:00:58,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:58,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:00:58,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:58,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 10:00:58,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:58,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:58,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:58,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 10:00:58,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:58,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 10:00:58,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:58,561 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:58,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:00:58,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:58,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 10:00:58,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:58,601 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 10:00:58,602 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1460918915] [2020-09-25 10:00:58,602 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 10:00:58,602 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 10:00:58,603 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932049901] [2020-09-25 10:00:58,603 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 10:00:58,604 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:00:58,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 10:00:58,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 10:00:58,604 INFO L87 Difference]: Start difference. First operand 52 states and 64 transitions. Second operand 7 states. [2020-09-25 10:00:58,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:00:58,779 INFO L93 Difference]: Finished difference Result 70 states and 84 transitions. [2020-09-25 10:00:58,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 10:00:58,780 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2020-09-25 10:00:58,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:00:58,782 INFO L225 Difference]: With dead ends: 70 [2020-09-25 10:00:58,782 INFO L226 Difference]: Without dead ends: 64 [2020-09-25 10:00:58,784 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-25 10:00:58,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2020-09-25 10:00:58,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 50. [2020-09-25 10:00:58,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-09-25 10:00:58,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 60 transitions. [2020-09-25 10:00:58,797 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 60 transitions. Word has length 51 [2020-09-25 10:00:58,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:00:58,797 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 60 transitions. [2020-09-25 10:00:58,798 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 10:00:58,801 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 60 transitions. [2020-09-25 10:00:58,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-09-25 10:00:58,806 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:00:58,806 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 10:00:58,811 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 10:00:58,811 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:00:58,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:00:58,811 INFO L82 PathProgramCache]: Analyzing trace with hash 1879014210, now seen corresponding path program 1 times [2020-09-25 10:00:58,812 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:00:58,812 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2119401489] [2020-09-25 10:00:58,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:00:58,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:58,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:58,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:58,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:58,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:59,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:59,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:59,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:59,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:59,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:59,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:03,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:03,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-09-25 10:01:03,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-25 10:01:03,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 10:01:03,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:03,827 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:03,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 10:01:03,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 10:01:03,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-25 10:01:03,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:01:03,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:01:03,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:03,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:03,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:03,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:01:03,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:01:03,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:01:03,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:03,847 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:03,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:01:03,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:01:03,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:01:03,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:01:03,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 10:01:03,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:03,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:03,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:03,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:03,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:03,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:04,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:04,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:05,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:05,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:07,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:08,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:08,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:08,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:08,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:08,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-25 10:01:08,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-09-25 10:01:08,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 10:01:08,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:08,864 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:08,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 10:01:08,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 10:01:08,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-09-25 10:01:08,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:01:08,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 10:01:08,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:08,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:08,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:08,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:09,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:09,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 10:01:09,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 10:01:09,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 183 [2020-09-25 10:01:09,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:09,079 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:09,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 10:01:09,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:01:09,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 10:01:09,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:01:09,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 10:01:09,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:09,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:09,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:09,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:01:09,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:01:09,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 10:01:09,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:09,110 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:09,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:01:09,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:01:09,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:01:09,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:01:09,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 10:01:09,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:09,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:09,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:09,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:01:09,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:01:09,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 10:01:09,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:09,122 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:09,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:01:09,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:01:09,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 10:01:09,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:01:09,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 10:01:09,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:09,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:09,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:09,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:09,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 10:01:09,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 10:01:09,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-09-25 10:01:09,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:09,213 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:09,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:01:09,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:01:09,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 10:01:09,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:01:09,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 10:01:09,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:09,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:09,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:09,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:01:09,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:01:09,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:01:09,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:09,223 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:09,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:01:09,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:01:09,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:01:09,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:01:09,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 10:01:09,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:09,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:09,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:09,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:01:09,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:01:09,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:01:09,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:09,231 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:09,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:01:09,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:01:09,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:01:09,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:01:09,241 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 10 proven. 25 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2020-09-25 10:01:09,242 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2119401489] [2020-09-25 10:01:09,243 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 10:01:09,243 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 10:01:09,243 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771163644] [2020-09-25 10:01:09,244 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 10:01:09,244 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:01:09,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 10:01:09,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-25 10:01:09,245 INFO L87 Difference]: Start difference. First operand 50 states and 60 transitions. Second operand 9 states. [2020-09-25 10:01:09,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:01:09,481 INFO L93 Difference]: Finished difference Result 128 states and 179 transitions. [2020-09-25 10:01:09,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 10:01:09,481 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 67 [2020-09-25 10:01:09,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:01:09,483 INFO L225 Difference]: With dead ends: 128 [2020-09-25 10:01:09,483 INFO L226 Difference]: Without dead ends: 84 [2020-09-25 10:01:09,488 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-09-25 10:01:09,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2020-09-25 10:01:09,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 76. [2020-09-25 10:01:09,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-09-25 10:01:09,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 98 transitions. [2020-09-25 10:01:09,507 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 98 transitions. Word has length 67 [2020-09-25 10:01:09,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:01:09,508 INFO L479 AbstractCegarLoop]: Abstraction has 76 states and 98 transitions. [2020-09-25 10:01:09,508 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 10:01:09,508 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 98 transitions. [2020-09-25 10:01:09,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-09-25 10:01:09,510 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:01:09,511 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:01:09,511 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 10:01:09,511 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:01:09,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:01:09,511 INFO L82 PathProgramCache]: Analyzing trace with hash 261409208, now seen corresponding path program 1 times [2020-09-25 10:01:09,512 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:01:09,512 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1685732858] [2020-09-25 10:01:09,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:01:09,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:09,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:09,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:09,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:09,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:09,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:09,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:10,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:11,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:13,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:14,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:14,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 10:01:14,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-25 10:01:14,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 10:01:14,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:14,521 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:14,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 10:01:14,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 10:01:14,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-25 10:01:14,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:01:14,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:01:14,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:14,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:14,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:14,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:01:14,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:01:14,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:01:14,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:14,540 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:14,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:01:14,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:01:14,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:01:14,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:01:14,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 10:01:14,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:14,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:14,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:14,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:14,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:14,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:16,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:16,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:16,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:16,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:19,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:19,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-09-25 10:01:19,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-25 10:01:19,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 10:01:19,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:19,547 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:19,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 10:01:19,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 10:01:19,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 10:01:19,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:01:19,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 10:01:19,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:19,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:19,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:19,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:19,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:19,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 10:01:19,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 10:01:19,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 156 [2020-09-25 10:01:19,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:19,734 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:19,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:01:19,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:01:19,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 10:01:19,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:01:19,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 10:01:19,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:19,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:19,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:19,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 10:01:19,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:01:19,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:01:19,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:19,745 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:19,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:01:19,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:01:19,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:01:19,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:01:19,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 10:01:19,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:19,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:19,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:19,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 10:01:19,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:01:19,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:01:19,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:19,753 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:19,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:01:19,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:01:19,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:01:19,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:01:19,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-25 10:01:19,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:19,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:19,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:19,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:19,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 10:01:19,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 10:01:19,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 198 [2020-09-25 10:01:19,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:19,959 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:19,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 10:01:19,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:01:19,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 10:01:19,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:01:19,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 10:01:19,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:19,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:20,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:20,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 10:01:20,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:01:20,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 10:01:20,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:20,010 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:20,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:01:20,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:01:20,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 10:01:20,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:01:20,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 10:01:20,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:20,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:20,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:20,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:01:20,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:01:20,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 10:01:20,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:20,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:20,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:01:20,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:01:20,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:01:20,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:01:20,057 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 27 proven. 10 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-09-25 10:01:20,057 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1685732858] [2020-09-25 10:01:20,058 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 10:01:20,058 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-25 10:01:20,058 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270910732] [2020-09-25 10:01:20,059 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 10:01:20,059 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:01:20,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 10:01:20,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 10:01:20,059 INFO L87 Difference]: Start difference. First operand 76 states and 98 transitions. Second operand 8 states. [2020-09-25 10:01:20,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:01:20,254 INFO L93 Difference]: Finished difference Result 134 states and 195 transitions. [2020-09-25 10:01:20,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 10:01:20,254 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 70 [2020-09-25 10:01:20,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:01:20,257 INFO L225 Difference]: With dead ends: 134 [2020-09-25 10:01:20,257 INFO L226 Difference]: Without dead ends: 128 [2020-09-25 10:01:20,258 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 1 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 10:01:20,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2020-09-25 10:01:20,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 110. [2020-09-25 10:01:20,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2020-09-25 10:01:20,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 160 transitions. [2020-09-25 10:01:20,276 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 160 transitions. Word has length 70 [2020-09-25 10:01:20,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:01:20,276 INFO L479 AbstractCegarLoop]: Abstraction has 110 states and 160 transitions. [2020-09-25 10:01:20,276 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 10:01:20,276 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 160 transitions. [2020-09-25 10:01:20,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-09-25 10:01:20,279 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:01:20,279 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:01:20,279 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 10:01:20,279 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:01:20,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:01:20,280 INFO L82 PathProgramCache]: Analyzing trace with hash -1094780228, now seen corresponding path program 1 times [2020-09-25 10:01:20,280 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:01:20,280 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [78665113] [2020-09-25 10:01:20,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:01:20,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:20,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:20,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:20,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:20,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:20,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:20,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:20,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:20,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:21,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:21,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:21,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:21,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:21,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:21,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:21,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:21,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:23,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:23,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:24,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:25,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:25,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-09-25 10:01:25,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 19 [2020-09-25 10:01:25,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-09-25 10:01:25,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:25,307 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:25,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 10:01:25,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 10:01:25,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-09-25 10:01:25,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:01:25,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:01:25,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:25,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:25,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:25,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:01:25,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:01:25,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 10:01:25,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:25,325 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:25,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:01:25,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:01:25,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:01:25,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:01:25,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 10:01:25,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:25,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:25,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:25,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:25,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:25,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:25,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:26,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:26,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:26,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:26,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:26,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:27,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:27,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:27,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:27,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:27,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:30,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:30,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 140 [2020-09-25 10:01:30,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-09-25 10:01:30,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-25 10:01:30,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:30,349 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:30,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 10:01:30,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 10:01:30,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 10:01:30,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:01:30,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 10:01:30,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:30,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:30,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:30,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:30,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:30,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:30,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:31,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:33,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:33,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 10:01:33,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 10:01:33,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2761 [2020-09-25 10:01:33,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:33,136 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:33,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 10:01:33,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:01:33,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 10:01:33,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:01:33,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 10:01:33,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:33,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:33,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:33,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:33,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 10:01:33,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 10:01:33,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-09-25 10:01:33,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:33,240 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:33,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:01:33,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:01:33,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 10:01:33,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:01:33,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 10:01:33,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:33,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:33,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:33,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:01:33,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:01:33,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:01:33,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:33,250 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:33,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:01:33,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:01:33,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:01:33,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:01:33,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 10:01:33,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:33,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:33,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:33,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:01:33,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:01:33,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:01:33,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:33,258 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:33,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:01:33,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:01:33,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:01:33,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:01:33,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 10:01:33,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:33,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:33,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:33,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 10:01:33,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:01:33,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 10:01:33,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:33,278 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:33,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:01:33,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:01:33,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 10:01:33,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:01:33,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-25 10:01:33,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:33,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:33,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:33,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:33,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:33,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:33,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:33,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:33,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:34,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:34,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:34,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:34,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:35,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:35,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:35,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:35,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:38,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:38,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-25 10:01:38,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-09-25 10:01:38,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 10:01:38,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:38,305 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:38,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 10:01:38,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 10:01:38,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-25 10:01:38,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:01:38,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 10:01:38,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:38,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:38,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:38,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:38,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:38,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:38,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:38,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking...