/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.8 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive-simple/fibo_2calls_10-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 07:44:12,803 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 07:44:12,807 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 07:44:12,837 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 07:44:12,839 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 07:44:12,848 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 07:44:12,850 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 07:44:12,854 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 07:44:12,858 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 07:44:12,859 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 07:44:12,861 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 07:44:12,862 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 07:44:12,863 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 07:44:12,865 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 07:44:12,868 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 07:44:12,870 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 07:44:12,872 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 07:44:12,873 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 07:44:12,876 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 07:44:12,878 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 07:44:12,883 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 07:44:12,885 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 07:44:12,887 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 07:44:12,888 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 07:44:12,893 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 07:44:12,893 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 07:44:12,894 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 07:44:12,897 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 07:44:12,897 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 07:44:12,899 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 07:44:12,900 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 07:44:12,901 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 07:44:12,901 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 07:44:12,902 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 07:44:12,904 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 07:44:12,904 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 07:44:12,905 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 07:44:12,905 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 07:44:12,905 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 07:44:12,906 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 07:44:12,908 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 07:44:12,909 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 07:44:12,961 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 07:44:12,962 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 07:44:12,964 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 07:44:12,964 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 07:44:12,964 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 07:44:12,965 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 07:44:12,965 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 07:44:12,965 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 07:44:12,965 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 07:44:12,966 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 07:44:12,967 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 07:44:12,967 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 07:44:12,967 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 07:44:12,968 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 07:44:12,968 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 07:44:12,968 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 07:44:12,968 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 07:44:12,968 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 07:44:12,969 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 07:44:12,969 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 07:44:12,969 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 07:44:12,969 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:44:12,970 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 07:44:12,970 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 07:44:12,970 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 07:44:12,970 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 07:44:12,970 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 07:44:12,971 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 07:44:12,971 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 07:44:12,971 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; [2020-09-25 07:44:13,447 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 07:44:13,471 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 07:44:13,477 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 07:44:13,480 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 07:44:13,481 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 07:44:13,482 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/fibo_2calls_10-1.c [2020-09-25 07:44:13,569 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/536420f7f/1b056c78da7e48caacc1222c8187ad60/FLAGaeb752b3e [2020-09-25 07:44:14,101 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 07:44:14,102 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/fibo_2calls_10-1.c [2020-09-25 07:44:14,111 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/536420f7f/1b056c78da7e48caacc1222c8187ad60/FLAGaeb752b3e [2020-09-25 07:44:14,443 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/536420f7f/1b056c78da7e48caacc1222c8187ad60 [2020-09-25 07:44:14,457 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 07:44:14,463 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 07:44:14,464 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 07:44:14,464 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 07:44:14,468 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 07:44:14,469 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:44:14" (1/1) ... [2020-09-25 07:44:14,474 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54535c98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:44:14, skipping insertion in model container [2020-09-25 07:44:14,474 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:44:14" (1/1) ... [2020-09-25 07:44:14,483 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 07:44:14,507 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 07:44:14,720 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:44:14,726 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 07:44:14,746 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:44:14,761 INFO L208 MainTranslator]: Completed translation [2020-09-25 07:44:14,762 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:44:14 WrapperNode [2020-09-25 07:44:14,762 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 07:44:14,763 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 07:44:14,763 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 07:44:14,763 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 07:44:14,776 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:44:14" (1/1) ... [2020-09-25 07:44:14,776 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:44:14" (1/1) ... [2020-09-25 07:44:14,782 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:44:14" (1/1) ... [2020-09-25 07:44:14,782 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:44:14" (1/1) ... [2020-09-25 07:44:14,867 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:44:14" (1/1) ... [2020-09-25 07:44:14,870 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:44:14" (1/1) ... [2020-09-25 07:44:14,872 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:44:14" (1/1) ... [2020-09-25 07:44:14,873 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 07:44:14,874 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 07:44:14,874 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 07:44:14,874 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 07:44:14,875 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:44:14" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:44:14,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 07:44:14,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 07:44:14,951 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2020-09-25 07:44:14,951 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2020-09-25 07:44:14,951 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 07:44:14,951 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 07:44:14,952 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 07:44:14,952 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2020-09-25 07:44:14,952 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2020-09-25 07:44:14,952 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 07:44:14,952 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 07:44:14,953 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 07:44:15,196 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 07:44:15,197 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 07:44:15,204 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:44:15 BoogieIcfgContainer [2020-09-25 07:44:15,204 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 07:44:15,206 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 07:44:15,206 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 07:44:15,210 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 07:44:15,210 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 07:44:14" (1/3) ... [2020-09-25 07:44:15,211 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57daf807 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:44:15, skipping insertion in model container [2020-09-25 07:44:15,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:44:14" (2/3) ... [2020-09-25 07:44:15,212 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57daf807 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:44:15, skipping insertion in model container [2020-09-25 07:44:15,212 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:44:15" (3/3) ... [2020-09-25 07:44:15,214 INFO L109 eAbstractionObserver]: Analyzing ICFG fibo_2calls_10-1.c [2020-09-25 07:44:15,228 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 07:44:15,240 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 07:44:15,284 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 07:44:15,342 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 07:44:15,343 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 07:44:15,343 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 07:44:15,343 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 07:44:15,343 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 07:44:15,344 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 07:44:15,344 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 07:44:15,344 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 07:44:15,366 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2020-09-25 07:44:15,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-25 07:44:15,373 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:44:15,374 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:44:15,374 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:44:15,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:44:15,381 INFO L82 PathProgramCache]: Analyzing trace with hash -1089710179, now seen corresponding path program 1 times [2020-09-25 07:44:15,389 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:44:15,390 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [260513641] [2020-09-25 07:44:15,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:44:15,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:15,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:15,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:15,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 07:44:15,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:44:15,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-25 07:44:15,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:15,558 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:15,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:44:15,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 07:44:15,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 07:44:15,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 07:44:15,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:44:15,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:15,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:15,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:15,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:44:15,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:44:15,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:44:15,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:15,624 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:15,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:44:15,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:44:15,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:44:15,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:44:15,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 07:44:15,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:15,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:15,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:15,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:44:15,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:44:15,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 07:44:15,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:15,665 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:15,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:44:15,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 07:44:15,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:44:15,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:44:15,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:44:15,709 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [260513641] [2020-09-25 07:44:15,711 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:44:15,712 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 07:44:15,713 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989108441] [2020-09-25 07:44:15,718 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 07:44:15,718 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:44:15,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 07:44:15,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:44:15,734 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 5 states. [2020-09-25 07:44:15,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:44:15,867 INFO L93 Difference]: Finished difference Result 58 states and 67 transitions. [2020-09-25 07:44:15,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 07:44:15,871 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-25 07:44:15,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:44:15,890 INFO L225 Difference]: With dead ends: 58 [2020-09-25 07:44:15,890 INFO L226 Difference]: Without dead ends: 42 [2020-09-25 07:44:15,894 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 07:44:15,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-09-25 07:44:15,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-09-25 07:44:15,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-09-25 07:44:15,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2020-09-25 07:44:15,948 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 16 [2020-09-25 07:44:15,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:44:15,949 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2020-09-25 07:44:15,949 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 07:44:15,949 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2020-09-25 07:44:15,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-25 07:44:15,951 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:44:15,951 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 07:44:15,951 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 07:44:15,952 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:44:15,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:44:15,952 INFO L82 PathProgramCache]: Analyzing trace with hash -653728005, now seen corresponding path program 1 times [2020-09-25 07:44:15,952 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:44:15,953 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1806424447] [2020-09-25 07:44:15,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:44:15,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:15,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:16,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:16,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 07:44:16,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:44:16,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-09-25 07:44:16,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:16,044 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:16,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:44:16,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 07:44:16,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:44:16,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:44:16,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:44:16,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:16,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:16,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:16,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:44:16,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:44:16,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:44:16,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:16,084 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:16,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:44:16,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:44:16,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:44:16,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:44:16,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 07:44:16,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:16,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:16,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:16,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:44:16,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:44:16,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-25 07:44:16,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:16,127 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:16,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:44:16,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 07:44:16,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:44:16,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:44:16,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:44:16,152 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1806424447] [2020-09-25 07:44:16,152 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:44:16,152 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 07:44:16,152 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012342233] [2020-09-25 07:44:16,154 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 07:44:16,155 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:44:16,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 07:44:16,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:44:16,156 INFO L87 Difference]: Start difference. First operand 42 states and 49 transitions. Second operand 5 states. [2020-09-25 07:44:16,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:44:16,231 INFO L93 Difference]: Finished difference Result 50 states and 58 transitions. [2020-09-25 07:44:16,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 07:44:16,232 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-09-25 07:44:16,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:44:16,234 INFO L225 Difference]: With dead ends: 50 [2020-09-25 07:44:16,234 INFO L226 Difference]: Without dead ends: 44 [2020-09-25 07:44:16,235 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 07:44:16,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-09-25 07:44:16,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 42. [2020-09-25 07:44:16,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-09-25 07:44:16,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2020-09-25 07:44:16,245 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 17 [2020-09-25 07:44:16,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:44:16,246 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2020-09-25 07:44:16,246 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 07:44:16,246 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2020-09-25 07:44:16,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-09-25 07:44:16,248 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:44:16,248 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 07:44:16,249 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 07:44:16,249 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:44:16,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:44:16,249 INFO L82 PathProgramCache]: Analyzing trace with hash -1617834856, now seen corresponding path program 1 times [2020-09-25 07:44:16,250 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:44:16,250 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [951508373] [2020-09-25 07:44:16,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:44:16,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:16,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:16,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:16,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:16,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:16,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-25 07:44:16,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 07:44:16,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 587 [2020-09-25 07:44:16,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:16,856 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:16,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:44:16,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 07:44:16,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 07:44:16,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:44:16,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:44:16,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:16,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:16,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:16,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:44:16,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:44:16,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:44:16,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:16,878 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:16,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:44:16,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:44:16,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:44:16,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:44:16,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 07:44:16,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:16,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:16,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:16,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:17,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:17,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 07:44:17,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 07:44:17,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 218 [2020-09-25 07:44:17,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:17,108 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:17,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:44:17,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 07:44:17,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 07:44:17,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:44:17,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:44:17,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:17,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:17,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:17,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:44:17,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:44:17,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 07:44:17,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:17,143 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:17,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:44:17,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:44:17,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:44:17,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:44:17,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 07:44:17,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:17,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:17,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:17,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:44:17,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:44:17,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 07:44:17,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:17,161 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:17,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:44:17,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:44:17,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:44:17,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:44:17,186 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 07:44:17,187 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [951508373] [2020-09-25 07:44:17,187 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:44:17,188 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 07:44:17,188 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284970265] [2020-09-25 07:44:17,189 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 07:44:17,189 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:44:17,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 07:44:17,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 07:44:17,190 INFO L87 Difference]: Start difference. First operand 42 states and 49 transitions. Second operand 7 states. [2020-09-25 07:44:17,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:44:17,306 INFO L93 Difference]: Finished difference Result 58 states and 69 transitions. [2020-09-25 07:44:17,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 07:44:17,307 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2020-09-25 07:44:17,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:44:17,309 INFO L225 Difference]: With dead ends: 58 [2020-09-25 07:44:17,309 INFO L226 Difference]: Without dead ends: 52 [2020-09-25 07:44:17,310 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 07:44:17,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-09-25 07:44:17,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 50. [2020-09-25 07:44:17,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-09-25 07:44:17,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 60 transitions. [2020-09-25 07:44:17,321 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 60 transitions. Word has length 33 [2020-09-25 07:44:17,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:44:17,322 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 60 transitions. [2020-09-25 07:44:17,322 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 07:44:17,322 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 60 transitions. [2020-09-25 07:44:17,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-25 07:44:17,324 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:44:17,324 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 07:44:17,325 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 07:44:17,325 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:44:17,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:44:17,325 INFO L82 PathProgramCache]: Analyzing trace with hash 186293384, now seen corresponding path program 1 times [2020-09-25 07:44:17,326 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:44:17,326 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1208680506] [2020-09-25 07:44:17,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:44:17,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:17,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:17,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:17,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:17,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:17,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:17,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 07:44:17,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:44:17,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 499 [2020-09-25 07:44:17,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:17,836 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:17,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:44:17,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 07:44:17,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 07:44:17,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:44:17,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:44:17,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:17,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:17,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:17,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:44:17,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:44:17,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:44:17,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:17,858 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:17,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:44:17,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:44:17,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:44:17,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:44:17,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 07:44:17,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:17,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:17,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:17,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:18,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:18,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:18,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 07:44:18,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:44:18,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 420 [2020-09-25 07:44:18,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:18,289 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:18,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:44:18,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 07:44:18,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 07:44:18,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:44:18,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:44:18,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:18,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:18,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:18,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:44:18,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:44:18,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 07:44:18,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:18,340 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:18,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:44:18,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:44:18,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 07:44:18,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:44:18,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 07:44:18,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:18,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:18,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:18,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:44:18,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:44:18,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 07:44:18,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:18,376 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:18,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:44:18,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:44:18,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:44:18,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:44:18,383 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 07:44:18,383 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1208680506] [2020-09-25 07:44:18,383 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:44:18,383 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 07:44:18,384 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569806243] [2020-09-25 07:44:18,384 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 07:44:18,385 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:44:18,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 07:44:18,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 07:44:18,385 INFO L87 Difference]: Start difference. First operand 50 states and 60 transitions. Second operand 7 states. [2020-09-25 07:44:18,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:44:18,506 INFO L93 Difference]: Finished difference Result 110 states and 146 transitions. [2020-09-25 07:44:18,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 07:44:18,507 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2020-09-25 07:44:18,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:44:18,509 INFO L225 Difference]: With dead ends: 110 [2020-09-25 07:44:18,509 INFO L226 Difference]: Without dead ends: 66 [2020-09-25 07:44:18,511 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 07:44:18,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-09-25 07:44:18,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 54. [2020-09-25 07:44:18,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-09-25 07:44:18,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 68 transitions. [2020-09-25 07:44:18,523 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 68 transitions. Word has length 35 [2020-09-25 07:44:18,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:44:18,523 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 68 transitions. [2020-09-25 07:44:18,523 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 07:44:18,524 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 68 transitions. [2020-09-25 07:44:18,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-25 07:44:18,526 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:44:18,527 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 07:44:18,527 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 07:44:18,527 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:44:18,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:44:18,528 INFO L82 PathProgramCache]: Analyzing trace with hash 758565477, now seen corresponding path program 1 times [2020-09-25 07:44:18,528 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:44:18,528 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1756958730] [2020-09-25 07:44:18,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:44:18,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:18,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:18,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:18,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:18,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:18,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:18,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:18,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:23,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:23,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-09-25 07:44:23,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 07:44:23,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 07:44:23,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:23,540 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:23,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:44:23,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 07:44:23,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-25 07:44:23,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:44:23,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:44:23,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:23,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:23,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:23,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:44:23,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:44:23,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:44:23,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:23,563 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:23,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:44:23,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:44:23,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:44:23,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:44:23,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 07:44:23,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:23,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:23,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:23,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:23,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:24,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:24,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:25,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:25,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:25,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 07:44:25,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 07:44:25,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2204 [2020-09-25 07:44:25,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:25,780 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:25,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:44:25,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 07:44:25,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 07:44:25,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:44:25,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:44:25,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:25,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:25,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:25,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:25,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 07:44:25,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:44:25,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-09-25 07:44:25,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:25,913 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:25,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:44:25,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:44:25,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 07:44:25,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:44:25,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:44:25,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:25,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:25,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:25,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:44:25,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:44:25,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:44:25,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:25,927 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:25,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:44:25,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:44:25,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:44:25,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:44:25,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 07:44:25,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:25,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:25,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:25,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:44:25,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:44:25,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:44:25,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:25,937 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:25,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:44:25,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:44:25,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:44:25,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:44:25,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 07:44:25,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:25,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:25,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:25,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:44:25,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:44:25,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 07:44:25,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:25,965 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:25,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:44:25,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:44:25,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 07:44:25,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:44:25,995 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 07:44:25,996 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1756958730] [2020-09-25 07:44:25,996 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:44:25,996 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 07:44:25,998 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993661680] [2020-09-25 07:44:25,999 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 07:44:25,999 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:44:25,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 07:44:25,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 07:44:26,000 INFO L87 Difference]: Start difference. First operand 54 states and 68 transitions. Second operand 7 states. [2020-09-25 07:44:26,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:44:26,135 INFO L93 Difference]: Finished difference Result 66 states and 81 transitions. [2020-09-25 07:44:26,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 07:44:26,136 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2020-09-25 07:44:26,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:44:26,141 INFO L225 Difference]: With dead ends: 66 [2020-09-25 07:44:26,141 INFO L226 Difference]: Without dead ends: 60 [2020-09-25 07:44:26,142 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 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 07:44:26,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-09-25 07:44:26,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 54. [2020-09-25 07:44:26,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-09-25 07:44:26,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 68 transitions. [2020-09-25 07:44:26,160 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 68 transitions. Word has length 51 [2020-09-25 07:44:26,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:44:26,163 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 68 transitions. [2020-09-25 07:44:26,163 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 07:44:26,163 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 68 transitions. [2020-09-25 07:44:26,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-09-25 07:44:26,169 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:44:26,169 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 07:44:26,169 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 07:44:26,169 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:44:26,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:44:26,172 INFO L82 PathProgramCache]: Analyzing trace with hash 1879014210, now seen corresponding path program 1 times [2020-09-25 07:44:26,172 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:44:26,173 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [866395248] [2020-09-25 07:44:26,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:44:26,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:26,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:26,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:26,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:26,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:26,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:26,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:26,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:27,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:27,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:27,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:31,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:31,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-09-25 07:44:31,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-25 07:44:31,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 07:44:31,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:31,188 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:31,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:44:31,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 07:44:31,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-25 07:44:31,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:44:31,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:44:31,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:31,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:31,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:31,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:44:31,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:44:31,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:44:31,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:31,206 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:31,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:44:31,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:44:31,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:44:31,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:44:31,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 07:44:31,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:31,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:31,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:31,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:31,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:31,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:31,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:32,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:33,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:33,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:36,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:36,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-25 07:44:36,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-25 07:44:36,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 07:44:36,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:36,215 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:36,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 07:44:36,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 07:44:36,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-09-25 07:44:36,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:44:36,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:44:36,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:36,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:36,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:36,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:36,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:36,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 07:44:36,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 07:44:36,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 143 [2020-09-25 07:44:36,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:36,377 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:36,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:44:36,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:44:36,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 07:44:36,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:44:36,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:44:36,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:36,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:36,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:36,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:44:36,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:44:36,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 07:44:36,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:36,409 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:36,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:44:36,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:44:36,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:44:36,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:44:36,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 07:44:36,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:36,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:36,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:36,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:44:36,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:44:36,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 07:44:36,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:36,444 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:36,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:44:36,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:44:36,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:44:36,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:44:36,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 07:44:36,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:36,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:36,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:36,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:36,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 07:44:36,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:44:36,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-09-25 07:44:36,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:36,542 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:36,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:44:36,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 07:44:36,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 07:44:36,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:44:36,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:44:36,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:36,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:36,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:36,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:44:36,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:44:36,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 07:44:36,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:36,619 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:36,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:44:36,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:44:36,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:44:36,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:44:36,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 07:44:36,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:36,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:36,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:36,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:44:36,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:44:36,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 07:44:36,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:36,632 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:36,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:44:36,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:44:36,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:44:36,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:44:36,643 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 11 proven. 21 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-09-25 07:44:36,644 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [866395248] [2020-09-25 07:44:36,644 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:44:36,644 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-25 07:44:36,644 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690661070] [2020-09-25 07:44:36,645 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 07:44:36,645 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:44:36,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 07:44:36,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-25 07:44:36,646 INFO L87 Difference]: Start difference. First operand 54 states and 68 transitions. Second operand 11 states. [2020-09-25 07:44:36,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:44:36,900 INFO L93 Difference]: Finished difference Result 107 states and 144 transitions. [2020-09-25 07:44:36,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 07:44:36,900 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 67 [2020-09-25 07:44:36,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:44:36,903 INFO L225 Difference]: With dead ends: 107 [2020-09-25 07:44:36,903 INFO L226 Difference]: Without dead ends: 59 [2020-09-25 07:44:36,904 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2020-09-25 07:44:36,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-09-25 07:44:36,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2020-09-25 07:44:36,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-09-25 07:44:36,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 72 transitions. [2020-09-25 07:44:36,927 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 72 transitions. Word has length 67 [2020-09-25 07:44:36,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:44:36,928 INFO L479 AbstractCegarLoop]: Abstraction has 59 states and 72 transitions. [2020-09-25 07:44:36,928 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 07:44:36,928 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 72 transitions. [2020-09-25 07:44:36,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-09-25 07:44:36,934 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:44:36,934 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:44:36,934 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 07:44:36,934 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:44:36,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:44:36,935 INFO L82 PathProgramCache]: Analyzing trace with hash -387134248, now seen corresponding path program 1 times [2020-09-25 07:44:36,935 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:44:36,936 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [548104688] [2020-09-25 07:44:36,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:44:36,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:36,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:36,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:37,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:37,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:37,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:37,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:37,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:38,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:39,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:39,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:41,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:41,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:41,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:41,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:41,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-09-25 07:44:41,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-09-25 07:44:41,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 07:44:41,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:41,946 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:41,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:44:41,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 07:44:41,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-09-25 07:44:41,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:44:41,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:44:41,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:41,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:41,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:41,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:44:41,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:44:41,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:44:41,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:41,968 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:41,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:44:41,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:44:41,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:44:41,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:44:41,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 07:44:41,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:41,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:42,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:42,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:42,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:42,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:42,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:43,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:44,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:44,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:46,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:46,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:46,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:46,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-25 07:44:46,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-09-25 07:44:46,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 07:44:46,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:46,980 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:46,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:44:46,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 07:44:46,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-25 07:44:46,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:44:47,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:44:47,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:47,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:47,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:47,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 07:44:47,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:44:47,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 07:44:47,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:47,028 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:47,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:44:47,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:44:47,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 07:44:47,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:44:47,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:44:47,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:47,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:47,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:47,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:44:47,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:44:47,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:44:47,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:47,039 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:47,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:44:47,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:44:47,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:44:47,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:44:47,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 07:44:47,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:47,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:47,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:47,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:44:47,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:44:47,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:44:47,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:47,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:47,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:44:47,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:44:47,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:44:47,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:44:47,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 07:44:47,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:47,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:47,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:47,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:47,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 07:44:47,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:44:47,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 216 [2020-09-25 07:44:47,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:47,267 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:47,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 07:44:47,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:44:47,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 07:44:47,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:44:47,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:44:47,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:47,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:47,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:47,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:44:47,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:44:47,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 07:44:47,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:47,313 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:47,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:44:47,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:44:47,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 07:44:47,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:44:47,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 07:44:47,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:47,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:47,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:47,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:44:47,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:44:47,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 07:44:47,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:47,342 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:47,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:44:47,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:44:47,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:44:47,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:44:47,351 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 25 proven. 9 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2020-09-25 07:44:47,351 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [548104688] [2020-09-25 07:44:47,351 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:44:47,352 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-25 07:44:47,352 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995140738] [2020-09-25 07:44:47,354 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 07:44:47,355 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:44:47,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 07:44:47,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 07:44:47,356 INFO L87 Difference]: Start difference. First operand 59 states and 72 transitions. Second operand 8 states. [2020-09-25 07:44:47,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:44:47,582 INFO L93 Difference]: Finished difference Result 138 states and 198 transitions. [2020-09-25 07:44:47,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 07:44:47,584 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 69 [2020-09-25 07:44:47,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:44:47,588 INFO L225 Difference]: With dead ends: 138 [2020-09-25 07:44:47,588 INFO L226 Difference]: Without dead ends: 85 [2020-09-25 07:44:47,592 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-09-25 07:44:47,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2020-09-25 07:44:47,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 79. [2020-09-25 07:44:47,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-09-25 07:44:47,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 109 transitions. [2020-09-25 07:44:47,615 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 109 transitions. Word has length 69 [2020-09-25 07:44:47,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:44:47,615 INFO L479 AbstractCegarLoop]: Abstraction has 79 states and 109 transitions. [2020-09-25 07:44:47,615 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 07:44:47,615 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 109 transitions. [2020-09-25 07:44:47,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-09-25 07:44:47,619 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:44:47,619 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:44:47,620 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 07:44:47,620 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:44:47,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:44:47,620 INFO L82 PathProgramCache]: Analyzing trace with hash 2120760888, now seen corresponding path program 1 times [2020-09-25 07:44:47,621 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:44:47,621 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1073683879] [2020-09-25 07:44:47,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:44:47,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:47,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:47,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:47,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:47,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:47,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:47,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:47,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:47,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:48,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:48,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:49,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:49,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:50,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:52,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:52,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-09-25 07:44:52,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-09-25 07:44:52,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-09-25 07:44:52,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:52,644 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:52,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 07:44:52,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 07:44:52,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-09-25 07:44:52,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:44:52,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:44:52,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:52,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:52,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:52,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:44:52,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:44:52,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:44:52,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:52,657 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:52,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:44:52,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:44:52,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:44:52,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:44:52,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 07:44:52,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:52,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:52,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:52,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:52,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:52,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:52,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:53,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:53,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:56,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:56,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:57,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:57,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:57,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:57,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:57,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:57,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:57,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:57,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:57,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-09-25 07:44:57,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 17 [2020-09-25 07:44:57,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-09-25 07:44:57,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:57,680 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:57,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:44:57,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 07:44:57,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-25 07:44:57,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:44:57,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:44:57,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:57,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:57,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:57,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:57,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:58,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:58,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-25 07:44:58,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:44:58,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 570 [2020-09-25 07:44:58,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:58,265 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:58,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:44:58,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 07:44:58,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-25 07:44:58,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:44:58,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:44:58,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:58,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:58,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:58,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:58,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:58,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:58,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 07:44:58,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:44:58,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 134 [2020-09-25 07:44:58,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:58,449 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:58,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:44:58,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:44:58,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 07:44:58,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:44:58,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:44:58,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:58,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:58,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:58,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:44:58,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:44:58,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 07:44:58,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:58,512 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:58,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:44:58,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:44:58,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:44:58,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:44:58,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 07:44:58,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:58,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:58,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:58,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:44:58,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:44:58,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 07:44:58,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:58,526 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:58,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:44:58,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:44:58,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:44:58,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:44:58,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 07:44:58,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:58,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:58,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:58,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:44:58,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:44:58,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:44:58,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:58,539 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:58,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:44:58,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 07:44:58,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:44:58,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:44:58,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-25 07:44:58,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:58,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:58,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:58,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:58,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:58,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:59,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:59,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-25 07:44:59,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:44:59,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 663 [2020-09-25 07:44:59,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:59,233 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:59,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:44:59,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 50 [2020-09-25 07:44:59,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:44:59,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:44:59,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:44:59,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:59,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:59,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:59,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:59,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 07:44:59,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:44:59,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-25 07:44:59,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:59,282 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:59,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:44:59,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:44:59,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:44:59,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:44:59,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:44:59,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:59,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:59,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:59,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:44:59,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:44:59,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:44:59,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:59,289 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:59,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:44:59,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:44:59,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:44:59,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:44:59,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 07:44:59,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:59,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:59,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:59,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:44:59,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:44:59,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:44:59,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:59,295 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:59,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:44:59,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:44:59,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:44:59,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:44:59,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 07:44:59,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:59,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:59,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:59,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:44:59,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:44:59,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:44:59,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:59,302 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:59,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:44:59,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:44:59,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:44:59,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:44:59,313 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 26 proven. 40 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2020-09-25 07:44:59,313 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1073683879] [2020-09-25 07:44:59,313 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:44:59,313 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 07:44:59,314 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434971518] [2020-09-25 07:44:59,316 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 07:44:59,316 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:44:59,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 07:44:59,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-09-25 07:44:59,317 INFO L87 Difference]: Start difference. First operand 79 states and 109 transitions. Second operand 10 states. [2020-09-25 07:44:59,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:44:59,516 INFO L93 Difference]: Finished difference Result 160 states and 239 transitions. [2020-09-25 07:44:59,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 07:44:59,518 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 101 [2020-09-25 07:44:59,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:44:59,523 INFO L225 Difference]: With dead ends: 160 [2020-09-25 07:44:59,523 INFO L226 Difference]: Without dead ends: 87 [2020-09-25 07:44:59,524 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2020-09-25 07:44:59,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2020-09-25 07:44:59,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 81. [2020-09-25 07:44:59,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-09-25 07:44:59,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 111 transitions. [2020-09-25 07:44:59,546 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 111 transitions. Word has length 101 [2020-09-25 07:44:59,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:44:59,547 INFO L479 AbstractCegarLoop]: Abstraction has 81 states and 111 transitions. [2020-09-25 07:44:59,547 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 07:44:59,547 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 111 transitions. [2020-09-25 07:44:59,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-09-25 07:44:59,548 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:44:59,548 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:44:59,549 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 07:44:59,549 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:44:59,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:44:59,549 INFO L82 PathProgramCache]: Analyzing trace with hash -1801853252, now seen corresponding path program 1 times [2020-09-25 07:44:59,549 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:44:59,550 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [783735123] [2020-09-25 07:44:59,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:44:59,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:59,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:59,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:59,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:59,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:59,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:59,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:59,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:59,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:00,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:00,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:00,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:00,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:00,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:04,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:04,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:04,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:04,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-09-25 07:45:04,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-09-25 07:45:04,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-25 07:45:04,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:04,569 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:04,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:45:04,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 07:45:04,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-09-25 07:45:04,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:45:04,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:45:04,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:04,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:04,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:04,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:45:04,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:04,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:45:04,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:04,589 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:04,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:45:04,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:04,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:45:04,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:45:04,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 07:45:04,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:04,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:04,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:04,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:04,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:04,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:04,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:04,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:04,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:05,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:05,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:05,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:05,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:05,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:06,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking...