/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=WIDEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/locks/test_locks_11.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 03:13:19,912 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 03:13:19,916 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 03:13:19,943 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 03:13:19,943 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 03:13:19,944 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 03:13:19,946 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 03:13:19,948 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 03:13:19,949 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 03:13:19,950 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 03:13:19,952 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 03:13:19,953 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 03:13:19,953 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 03:13:19,954 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 03:13:19,955 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 03:13:19,957 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 03:13:19,958 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 03:13:19,959 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 03:13:19,960 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 03:13:19,962 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 03:13:19,964 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 03:13:19,965 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 03:13:19,966 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 03:13:19,967 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 03:13:19,970 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 03:13:19,970 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 03:13:19,970 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 03:13:19,971 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 03:13:19,972 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 03:13:19,973 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 03:13:19,973 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 03:13:19,974 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 03:13:19,976 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 03:13:19,977 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 03:13:19,979 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 03:13:19,979 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 03:13:19,980 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 03:13:19,980 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 03:13:19,981 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 03:13:19,981 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 03:13:19,983 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 03:13:19,984 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 03:13:20,043 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 03:13:20,046 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 03:13:20,048 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 03:13:20,048 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 03:13:20,048 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 03:13:20,048 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 03:13:20,049 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 03:13:20,050 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 03:13:20,050 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 03:13:20,050 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 03:13:20,050 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 03:13:20,051 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 03:13:20,051 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 03:13:20,051 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 03:13:20,051 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 03:13:20,051 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 03:13:20,052 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 03:13:20,055 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 03:13:20,055 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 03:13:20,055 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 03:13:20,056 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 03:13:20,056 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 03:13:20,056 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 03:13:20,056 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 03:13:20,056 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 03:13:20,057 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 03:13:20,057 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 03:13:20,058 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 03:13:20,058 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 03:13:20,058 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=WIDEST;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=WIDEST;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=WIDEST;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=WIDEST;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=WIDEST;log-additional-information=true; [2020-09-25 03:13:20,506 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 03:13:20,532 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 03:13:20,537 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 03:13:20,539 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 03:13:20,539 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 03:13:20,541 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/locks/test_locks_11.c [2020-09-25 03:13:20,627 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/da0418eb0/e5ee3306dabb4c4f99ad1553449c8371/FLAG4dd53faac [2020-09-25 03:13:21,170 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 03:13:21,171 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/locks/test_locks_11.c [2020-09-25 03:13:21,180 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/da0418eb0/e5ee3306dabb4c4f99ad1553449c8371/FLAG4dd53faac [2020-09-25 03:13:21,492 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/da0418eb0/e5ee3306dabb4c4f99ad1553449c8371 [2020-09-25 03:13:21,504 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 03:13:21,509 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 03:13:21,510 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 03:13:21,510 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 03:13:21,516 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 03:13:21,517 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:13:21" (1/1) ... [2020-09-25 03:13:21,522 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@87e4b2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:13:21, skipping insertion in model container [2020-09-25 03:13:21,522 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:13:21" (1/1) ... [2020-09-25 03:13:21,531 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 03:13:21,568 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 03:13:21,803 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 03:13:21,813 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 03:13:21,878 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 03:13:21,917 INFO L208 MainTranslator]: Completed translation [2020-09-25 03:13:21,921 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:13:21 WrapperNode [2020-09-25 03:13:21,921 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 03:13:21,923 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 03:13:21,923 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 03:13:21,924 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 03:13:22,023 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:13:21" (1/1) ... [2020-09-25 03:13:22,024 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:13:21" (1/1) ... [2020-09-25 03:13:22,032 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:13:21" (1/1) ... [2020-09-25 03:13:22,033 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:13:21" (1/1) ... [2020-09-25 03:13:22,039 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:13:21" (1/1) ... [2020-09-25 03:13:22,048 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:13:21" (1/1) ... [2020-09-25 03:13:22,050 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:13:21" (1/1) ... [2020-09-25 03:13:22,053 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 03:13:22,054 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 03:13:22,054 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 03:13:22,054 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 03:13:22,055 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:13:21" (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 03:13:22,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 03:13:22,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 03:13:22,145 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 03:13:22,146 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 03:13:22,147 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 03:13:22,147 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 03:13:22,148 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 03:13:22,148 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 03:13:22,581 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 03:13:22,581 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 03:13:22,590 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:13:22 BoogieIcfgContainer [2020-09-25 03:13:22,591 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 03:13:22,592 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 03:13:22,592 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 03:13:22,596 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 03:13:22,596 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 03:13:21" (1/3) ... [2020-09-25 03:13:22,597 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fd2b60d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:13:22, skipping insertion in model container [2020-09-25 03:13:22,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:13:21" (2/3) ... [2020-09-25 03:13:22,598 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fd2b60d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:13:22, skipping insertion in model container [2020-09-25 03:13:22,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:13:22" (3/3) ... [2020-09-25 03:13:22,601 INFO L109 eAbstractionObserver]: Analyzing ICFG test_locks_11.c [2020-09-25 03:13:22,612 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 03:13:22,623 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 03:13:22,645 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 03:13:22,681 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 03:13:22,681 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 03:13:22,681 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 03:13:22,681 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 03:13:22,682 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 03:13:22,682 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 03:13:22,682 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 03:13:22,682 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 03:13:22,708 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states. [2020-09-25 03:13:22,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-09-25 03:13:22,718 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:13:22,719 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:13:22,720 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:13:22,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:13:22,726 INFO L82 PathProgramCache]: Analyzing trace with hash 1546178992, now seen corresponding path program 1 times [2020-09-25 03:13:22,735 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:13:22,736 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1569004642] [2020-09-25 03:13:22,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:13:22,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:22,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:23,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:23,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 03:13:23,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:23,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 238 [2020-09-25 03:13:23,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:23,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:13:23,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-09-25 03:13:23,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 03:13:23,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 03:13:23,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:13:23,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:23,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:23,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:23,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:13:23,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:23,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:13:23,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:23,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:13:23,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:13:23,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:13:23,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:13:23,297 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 03:13:23,298 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1569004642] [2020-09-25 03:13:23,300 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:13:23,301 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 03:13:23,302 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809036365] [2020-09-25 03:13:23,308 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 03:13:23,309 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:13:23,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 03:13:23,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 03:13:23,328 INFO L87 Difference]: Start difference. First operand 128 states. Second operand 3 states. [2020-09-25 03:13:23,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:13:23,419 INFO L93 Difference]: Finished difference Result 279 states and 384 transitions. [2020-09-25 03:13:23,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 03:13:23,421 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 79 [2020-09-25 03:13:23,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:13:23,438 INFO L225 Difference]: With dead ends: 279 [2020-09-25 03:13:23,439 INFO L226 Difference]: Without dead ends: 192 [2020-09-25 03:13:23,443 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 03:13:23,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2020-09-25 03:13:23,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 190. [2020-09-25 03:13:23,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 190 states. [2020-09-25 03:13:23,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 252 transitions. [2020-09-25 03:13:23,514 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 252 transitions. Word has length 79 [2020-09-25 03:13:23,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:13:23,515 INFO L479 AbstractCegarLoop]: Abstraction has 190 states and 252 transitions. [2020-09-25 03:13:23,515 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 03:13:23,515 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 252 transitions. [2020-09-25 03:13:23,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-09-25 03:13:23,519 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:13:23,519 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:13:23,520 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 03:13:23,520 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:13:23,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:13:23,521 INFO L82 PathProgramCache]: Analyzing trace with hash 687152074, now seen corresponding path program 1 times [2020-09-25 03:13:23,521 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:13:23,521 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [66786233] [2020-09-25 03:13:23,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:13:23,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:23,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:23,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:23,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-09-25 03:13:23,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:23,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128 [2020-09-25 03:13:23,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:23,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:13:23,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-09-25 03:13:23,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 03:13:23,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:13:23,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:13:23,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:23,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:23,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:23,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:13:23,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:23,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 03:13:23,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:23,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:13:23,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:13:23,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:13:23,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:13:23,758 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 03:13:23,758 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [66786233] [2020-09-25 03:13:23,759 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:13:23,763 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 03:13:23,763 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806610492] [2020-09-25 03:13:23,766 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 03:13:23,767 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:13:23,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 03:13:23,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 03:13:23,768 INFO L87 Difference]: Start difference. First operand 190 states and 252 transitions. Second operand 3 states. [2020-09-25 03:13:23,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:13:23,825 INFO L93 Difference]: Finished difference Result 466 states and 650 transitions. [2020-09-25 03:13:23,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 03:13:23,826 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 80 [2020-09-25 03:13:23,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:13:23,830 INFO L225 Difference]: With dead ends: 466 [2020-09-25 03:13:23,830 INFO L226 Difference]: Without dead ends: 325 [2020-09-25 03:13:23,832 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 03:13:23,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2020-09-25 03:13:23,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 323. [2020-09-25 03:13:23,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 323 states. [2020-09-25 03:13:23,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 442 transitions. [2020-09-25 03:13:23,870 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 442 transitions. Word has length 80 [2020-09-25 03:13:23,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:13:23,871 INFO L479 AbstractCegarLoop]: Abstraction has 323 states and 442 transitions. [2020-09-25 03:13:23,871 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 03:13:23,871 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 442 transitions. [2020-09-25 03:13:23,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-09-25 03:13:23,877 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:13:23,878 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:13:23,880 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 03:13:23,880 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:13:23,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:13:23,881 INFO L82 PathProgramCache]: Analyzing trace with hash 1261830773, now seen corresponding path program 1 times [2020-09-25 03:13:23,881 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:13:23,881 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1574288662] [2020-09-25 03:13:23,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:13:23,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:23,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:24,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:24,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-09-25 03:13:24,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:24,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-09-25 03:13:24,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:24,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:13:24,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-09-25 03:13:24,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 03:13:24,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:13:24,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:13:24,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:24,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:24,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:24,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:13:24,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:24,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 03:13:24,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:24,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:13:24,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:13:24,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:13:24,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:13:24,081 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 03:13:24,082 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1574288662] [2020-09-25 03:13:24,082 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:13:24,083 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 03:13:24,083 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562457229] [2020-09-25 03:13:24,084 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 03:13:24,084 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:13:24,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 03:13:24,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 03:13:24,085 INFO L87 Difference]: Start difference. First operand 323 states and 442 transitions. Second operand 3 states. [2020-09-25 03:13:24,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:13:24,118 INFO L93 Difference]: Finished difference Result 397 states and 552 transitions. [2020-09-25 03:13:24,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 03:13:24,119 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 80 [2020-09-25 03:13:24,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:13:24,125 INFO L225 Difference]: With dead ends: 397 [2020-09-25 03:13:24,125 INFO L226 Difference]: Without dead ends: 395 [2020-09-25 03:13:24,126 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 03:13:24,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2020-09-25 03:13:24,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 323. [2020-09-25 03:13:24,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 323 states. [2020-09-25 03:13:24,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 440 transitions. [2020-09-25 03:13:24,166 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 440 transitions. Word has length 80 [2020-09-25 03:13:24,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:13:24,168 INFO L479 AbstractCegarLoop]: Abstraction has 323 states and 440 transitions. [2020-09-25 03:13:24,168 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 03:13:24,169 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 440 transitions. [2020-09-25 03:13:24,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-09-25 03:13:24,171 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:13:24,171 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:13:24,171 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 03:13:24,171 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:13:24,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:13:24,175 INFO L82 PathProgramCache]: Analyzing trace with hash 397182858, now seen corresponding path program 1 times [2020-09-25 03:13:24,176 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:13:24,176 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [12684869] [2020-09-25 03:13:24,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:13:24,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:24,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:24,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:24,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-09-25 03:13:24,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:24,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-09-25 03:13:24,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:24,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:13:24,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-09-25 03:13:24,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 03:13:24,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:13:24,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:13:24,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:24,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:24,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:24,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:13:24,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:24,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:13:24,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:24,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:13:24,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:13:24,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:13:24,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:13:24,345 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 03:13:24,347 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [12684869] [2020-09-25 03:13:24,347 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:13:24,347 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 03:13:24,348 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994374697] [2020-09-25 03:13:24,349 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 03:13:24,349 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:13:24,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 03:13:24,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 03:13:24,352 INFO L87 Difference]: Start difference. First operand 323 states and 440 transitions. Second operand 3 states. [2020-09-25 03:13:24,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:13:24,376 INFO L93 Difference]: Finished difference Result 395 states and 546 transitions. [2020-09-25 03:13:24,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 03:13:24,377 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 81 [2020-09-25 03:13:24,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:13:24,380 INFO L225 Difference]: With dead ends: 395 [2020-09-25 03:13:24,380 INFO L226 Difference]: Without dead ends: 393 [2020-09-25 03:13:24,380 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 03:13:24,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2020-09-25 03:13:24,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 323. [2020-09-25 03:13:24,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 323 states. [2020-09-25 03:13:24,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 438 transitions. [2020-09-25 03:13:24,393 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 438 transitions. Word has length 81 [2020-09-25 03:13:24,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:13:24,394 INFO L479 AbstractCegarLoop]: Abstraction has 323 states and 438 transitions. [2020-09-25 03:13:24,394 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 03:13:24,394 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 438 transitions. [2020-09-25 03:13:24,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-09-25 03:13:24,396 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:13:24,396 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:13:24,397 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 03:13:24,397 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:13:24,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:13:24,397 INFO L82 PathProgramCache]: Analyzing trace with hash -172878236, now seen corresponding path program 1 times [2020-09-25 03:13:24,397 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:13:24,398 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1306691461] [2020-09-25 03:13:24,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:13:24,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:24,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:24,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:24,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-09-25 03:13:24,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:24,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-09-25 03:13:24,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:24,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:13:24,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-09-25 03:13:24,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 03:13:24,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:13:24,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:13:24,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:24,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:24,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:24,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:13:24,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:24,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:13:24,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:24,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:13:24,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:13:24,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:13:24,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:13:24,530 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 03:13:24,531 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1306691461] [2020-09-25 03:13:24,531 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:13:24,531 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 03:13:24,532 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737293976] [2020-09-25 03:13:24,533 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 03:13:24,533 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:13:24,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 03:13:24,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 03:13:24,534 INFO L87 Difference]: Start difference. First operand 323 states and 438 transitions. Second operand 3 states. [2020-09-25 03:13:24,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:13:24,566 INFO L93 Difference]: Finished difference Result 859 states and 1200 transitions. [2020-09-25 03:13:24,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 03:13:24,567 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 81 [2020-09-25 03:13:24,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:13:24,572 INFO L225 Difference]: With dead ends: 859 [2020-09-25 03:13:24,572 INFO L226 Difference]: Without dead ends: 585 [2020-09-25 03:13:24,576 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 03:13:24,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 585 states. [2020-09-25 03:13:24,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 585 to 583. [2020-09-25 03:13:24,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 583 states. [2020-09-25 03:13:24,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 583 states to 583 states and 802 transitions. [2020-09-25 03:13:24,600 INFO L78 Accepts]: Start accepts. Automaton has 583 states and 802 transitions. Word has length 81 [2020-09-25 03:13:24,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:13:24,601 INFO L479 AbstractCegarLoop]: Abstraction has 583 states and 802 transitions. [2020-09-25 03:13:24,601 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 03:13:24,601 INFO L276 IsEmpty]: Start isEmpty. Operand 583 states and 802 transitions. [2020-09-25 03:13:24,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-09-25 03:13:24,603 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:13:24,603 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:13:24,603 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 03:13:24,604 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:13:24,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:13:24,605 INFO L82 PathProgramCache]: Analyzing trace with hash -1064013698, now seen corresponding path program 1 times [2020-09-25 03:13:24,605 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:13:24,606 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [729031261] [2020-09-25 03:13:24,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:13:24,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:24,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:24,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:24,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-09-25 03:13:24,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:24,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-09-25 03:13:24,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:24,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:13:24,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 75 [2020-09-25 03:13:24,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 03:13:24,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:13:24,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:13:24,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:24,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:24,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:24,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:13:24,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:24,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:13:24,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:24,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:13:24,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:13:24,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:13:24,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:13:24,741 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 03:13:24,742 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [729031261] [2020-09-25 03:13:24,743 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:13:24,743 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 03:13:24,743 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180949539] [2020-09-25 03:13:24,744 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 03:13:24,744 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:13:24,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 03:13:24,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 03:13:24,744 INFO L87 Difference]: Start difference. First operand 583 states and 802 transitions. Second operand 3 states. [2020-09-25 03:13:24,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:13:24,780 INFO L93 Difference]: Finished difference Result 1627 states and 2276 transitions. [2020-09-25 03:13:24,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 03:13:24,782 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 82 [2020-09-25 03:13:24,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:13:24,788 INFO L225 Difference]: With dead ends: 1627 [2020-09-25 03:13:24,788 INFO L226 Difference]: Without dead ends: 1093 [2020-09-25 03:13:24,790 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 03:13:24,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1093 states. [2020-09-25 03:13:24,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1093 to 1091. [2020-09-25 03:13:24,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1091 states. [2020-09-25 03:13:24,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1091 states to 1091 states and 1506 transitions. [2020-09-25 03:13:24,828 INFO L78 Accepts]: Start accepts. Automaton has 1091 states and 1506 transitions. Word has length 82 [2020-09-25 03:13:24,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:13:24,828 INFO L479 AbstractCegarLoop]: Abstraction has 1091 states and 1506 transitions. [2020-09-25 03:13:24,829 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 03:13:24,829 INFO L276 IsEmpty]: Start isEmpty. Operand 1091 states and 1506 transitions. [2020-09-25 03:13:24,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-09-25 03:13:24,832 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:13:24,832 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:13:24,833 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 03:13:24,833 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:13:24,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:13:24,833 INFO L82 PathProgramCache]: Analyzing trace with hash -637098359, now seen corresponding path program 1 times [2020-09-25 03:13:24,836 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:13:24,836 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1762741986] [2020-09-25 03:13:24,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:13:24,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:24,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:24,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:24,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-09-25 03:13:24,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:24,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-09-25 03:13:24,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:24,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:13:24,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 75 [2020-09-25 03:13:24,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 03:13:24,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:13:24,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:13:24,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:24,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:24,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:24,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:13:24,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:24,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:13:24,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:24,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:13:24,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:13:24,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:13:24,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:13:24,938 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 03:13:24,939 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1762741986] [2020-09-25 03:13:24,939 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:13:24,939 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 03:13:24,939 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491194002] [2020-09-25 03:13:24,940 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 03:13:24,940 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:13:24,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 03:13:24,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 03:13:24,941 INFO L87 Difference]: Start difference. First operand 1091 states and 1506 transitions. Second operand 3 states. [2020-09-25 03:13:24,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:13:24,965 INFO L93 Difference]: Finished difference Result 1343 states and 1876 transitions. [2020-09-25 03:13:24,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 03:13:24,966 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 82 [2020-09-25 03:13:24,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:13:24,972 INFO L225 Difference]: With dead ends: 1343 [2020-09-25 03:13:24,973 INFO L226 Difference]: Without dead ends: 1341 [2020-09-25 03:13:24,974 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 03:13:24,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1341 states. [2020-09-25 03:13:24,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1341 to 1091. [2020-09-25 03:13:24,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1091 states. [2020-09-25 03:13:25,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1091 states to 1091 states and 1498 transitions. [2020-09-25 03:13:25,004 INFO L78 Accepts]: Start accepts. Automaton has 1091 states and 1498 transitions. Word has length 82 [2020-09-25 03:13:25,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:13:25,004 INFO L479 AbstractCegarLoop]: Abstraction has 1091 states and 1498 transitions. [2020-09-25 03:13:25,004 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 03:13:25,005 INFO L276 IsEmpty]: Start isEmpty. Operand 1091 states and 1498 transitions. [2020-09-25 03:13:25,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-09-25 03:13:25,006 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:13:25,006 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:13:25,007 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 03:13:25,007 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:13:25,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:13:25,007 INFO L82 PathProgramCache]: Analyzing trace with hash 1659922654, now seen corresponding path program 1 times [2020-09-25 03:13:25,007 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:13:25,008 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1737700189] [2020-09-25 03:13:25,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:13:25,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:25,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:25,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:25,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-09-25 03:13:25,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:25,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-09-25 03:13:25,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:25,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:13:25,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 76 [2020-09-25 03:13:25,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 03:13:25,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:13:25,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:13:25,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:25,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:25,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:25,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:13:25,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:25,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:13:25,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:25,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:13:25,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:13:25,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:13:25,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:13:25,105 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 03:13:25,105 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1737700189] [2020-09-25 03:13:25,105 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:13:25,105 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 03:13:25,106 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274868788] [2020-09-25 03:13:25,106 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 03:13:25,106 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:13:25,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 03:13:25,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 03:13:25,107 INFO L87 Difference]: Start difference. First operand 1091 states and 1498 transitions. Second operand 3 states. [2020-09-25 03:13:25,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:13:25,130 INFO L93 Difference]: Finished difference Result 1335 states and 1852 transitions. [2020-09-25 03:13:25,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 03:13:25,131 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 83 [2020-09-25 03:13:25,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:13:25,138 INFO L225 Difference]: With dead ends: 1335 [2020-09-25 03:13:25,138 INFO L226 Difference]: Without dead ends: 1333 [2020-09-25 03:13:25,139 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 03:13:25,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1333 states. [2020-09-25 03:13:25,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1333 to 1091. [2020-09-25 03:13:25,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1091 states. [2020-09-25 03:13:25,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1091 states to 1091 states and 1490 transitions. [2020-09-25 03:13:25,170 INFO L78 Accepts]: Start accepts. Automaton has 1091 states and 1490 transitions. Word has length 83 [2020-09-25 03:13:25,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:13:25,170 INFO L479 AbstractCegarLoop]: Abstraction has 1091 states and 1490 transitions. [2020-09-25 03:13:25,170 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 03:13:25,170 INFO L276 IsEmpty]: Start isEmpty. Operand 1091 states and 1490 transitions. [2020-09-25 03:13:25,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-09-25 03:13:25,172 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:13:25,172 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:13:25,172 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 03:13:25,172 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:13:25,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:13:25,173 INFO L82 PathProgramCache]: Analyzing trace with hash 1375558424, now seen corresponding path program 1 times [2020-09-25 03:13:25,173 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:13:25,173 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2059182906] [2020-09-25 03:13:25,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:13:25,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:25,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:25,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:25,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-09-25 03:13:25,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:25,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-09-25 03:13:25,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:25,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:13:25,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 76 [2020-09-25 03:13:25,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 03:13:25,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:13:25,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:13:25,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:25,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:25,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:25,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:13:25,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:25,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:13:25,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:25,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:13:25,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:13:25,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:13:25,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:13:25,320 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 03:13:25,321 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2059182906] [2020-09-25 03:13:25,321 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:13:25,321 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 03:13:25,321 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188030621] [2020-09-25 03:13:25,322 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 03:13:25,322 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:13:25,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 03:13:25,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 03:13:25,323 INFO L87 Difference]: Start difference. First operand 1091 states and 1490 transitions. Second operand 3 states. [2020-09-25 03:13:25,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:13:25,368 INFO L93 Difference]: Finished difference Result 3127 states and 4308 transitions. [2020-09-25 03:13:25,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 03:13:25,369 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 83 [2020-09-25 03:13:25,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:13:25,384 INFO L225 Difference]: With dead ends: 3127 [2020-09-25 03:13:25,384 INFO L226 Difference]: Without dead ends: 2085 [2020-09-25 03:13:25,388 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 03:13:25,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2085 states. [2020-09-25 03:13:25,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2085 to 2083. [2020-09-25 03:13:25,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2083 states. [2020-09-25 03:13:25,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2083 states to 2083 states and 2834 transitions. [2020-09-25 03:13:25,467 INFO L78 Accepts]: Start accepts. Automaton has 2083 states and 2834 transitions. Word has length 83 [2020-09-25 03:13:25,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:13:25,467 INFO L479 AbstractCegarLoop]: Abstraction has 2083 states and 2834 transitions. [2020-09-25 03:13:25,468 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 03:13:25,468 INFO L276 IsEmpty]: Start isEmpty. Operand 2083 states and 2834 transitions. [2020-09-25 03:13:25,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-09-25 03:13:25,470 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:13:25,470 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:13:25,471 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 03:13:25,471 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:13:25,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:13:25,471 INFO L82 PathProgramCache]: Analyzing trace with hash -146869603, now seen corresponding path program 1 times [2020-09-25 03:13:25,472 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:13:25,472 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [678222814] [2020-09-25 03:13:25,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:13:25,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:25,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:25,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:25,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 03:13:25,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:25,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-09-25 03:13:25,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:25,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:13:25,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-25 03:13:25,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 03:13:25,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:13:25,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:13:25,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:25,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:25,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:25,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:13:25,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:25,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:13:25,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:25,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:13:25,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:13:25,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:13:25,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:13:25,585 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 03:13:25,586 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [678222814] [2020-09-25 03:13:25,586 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:13:25,587 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 03:13:25,587 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723042785] [2020-09-25 03:13:25,588 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 03:13:25,588 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:13:25,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 03:13:25,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 03:13:25,589 INFO L87 Difference]: Start difference. First operand 2083 states and 2834 transitions. Second operand 3 states. [2020-09-25 03:13:25,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:13:25,628 INFO L93 Difference]: Finished difference Result 2535 states and 3476 transitions. [2020-09-25 03:13:25,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 03:13:25,629 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 84 [2020-09-25 03:13:25,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:13:25,647 INFO L225 Difference]: With dead ends: 2535 [2020-09-25 03:13:25,648 INFO L226 Difference]: Without dead ends: 2533 [2020-09-25 03:13:25,650 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 03:13:25,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2533 states. [2020-09-25 03:13:25,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2533 to 2083. [2020-09-25 03:13:25,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2083 states. [2020-09-25 03:13:25,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2083 states to 2083 states and 2818 transitions. [2020-09-25 03:13:25,736 INFO L78 Accepts]: Start accepts. Automaton has 2083 states and 2818 transitions. Word has length 84 [2020-09-25 03:13:25,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:13:25,737 INFO L479 AbstractCegarLoop]: Abstraction has 2083 states and 2818 transitions. [2020-09-25 03:13:25,737 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 03:13:25,737 INFO L276 IsEmpty]: Start isEmpty. Operand 2083 states and 2818 transitions. [2020-09-25 03:13:25,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-09-25 03:13:25,739 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:13:25,740 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:13:25,740 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-25 03:13:25,740 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:13:25,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:13:25,740 INFO L82 PathProgramCache]: Analyzing trace with hash -307116750, now seen corresponding path program 1 times [2020-09-25 03:13:25,741 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:13:25,741 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [37119080] [2020-09-25 03:13:25,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:13:25,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:25,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:25,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:25,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 03:13:25,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:25,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-09-25 03:13:25,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:25,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:13:25,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-25 03:13:25,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 03:13:25,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:13:25,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:13:25,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:25,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:25,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:25,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:13:25,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:25,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:13:25,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:25,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:13:25,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:13:25,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:13:25,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:13:25,849 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 03:13:25,850 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [37119080] [2020-09-25 03:13:25,850 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:13:25,850 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 03:13:25,851 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264885314] [2020-09-25 03:13:25,851 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 03:13:25,852 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:13:25,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 03:13:25,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 03:13:25,852 INFO L87 Difference]: Start difference. First operand 2083 states and 2818 transitions. Second operand 3 states. [2020-09-25 03:13:25,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:13:25,938 INFO L93 Difference]: Finished difference Result 6055 states and 8228 transitions. [2020-09-25 03:13:25,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 03:13:25,939 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 84 [2020-09-25 03:13:25,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:13:25,959 INFO L225 Difference]: With dead ends: 6055 [2020-09-25 03:13:25,959 INFO L226 Difference]: Without dead ends: 4021 [2020-09-25 03:13:25,963 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 03:13:25,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4021 states. [2020-09-25 03:13:26,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4021 to 4019. [2020-09-25 03:13:26,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4019 states. [2020-09-25 03:13:26,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4019 states to 4019 states and 5394 transitions. [2020-09-25 03:13:26,076 INFO L78 Accepts]: Start accepts. Automaton has 4019 states and 5394 transitions. Word has length 84 [2020-09-25 03:13:26,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:13:26,076 INFO L479 AbstractCegarLoop]: Abstraction has 4019 states and 5394 transitions. [2020-09-25 03:13:26,077 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 03:13:26,077 INFO L276 IsEmpty]: Start isEmpty. Operand 4019 states and 5394 transitions. [2020-09-25 03:13:26,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-09-25 03:13:26,080 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:13:26,080 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:13:26,081 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-25 03:13:26,081 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:13:26,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:13:26,081 INFO L82 PathProgramCache]: Analyzing trace with hash -322854350, now seen corresponding path program 1 times [2020-09-25 03:13:26,081 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:13:26,082 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1308620033] [2020-09-25 03:13:26,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:13:26,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:26,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:26,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:26,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-25 03:13:26,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:26,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-09-25 03:13:26,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:26,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:13:26,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 03:13:26,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 03:13:26,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:13:26,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:13:26,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:26,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:26,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:26,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:13:26,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:26,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:13:26,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:26,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:13:26,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:13:26,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:13:26,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:13:26,180 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 03:13:26,181 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1308620033] [2020-09-25 03:13:26,181 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:13:26,181 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 03:13:26,181 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451603209] [2020-09-25 03:13:26,182 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 03:13:26,182 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:13:26,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 03:13:26,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 03:13:26,183 INFO L87 Difference]: Start difference. First operand 4019 states and 5394 transitions. Second operand 3 states. [2020-09-25 03:13:26,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:13:26,227 INFO L93 Difference]: Finished difference Result 4855 states and 6548 transitions. [2020-09-25 03:13:26,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 03:13:26,228 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 85 [2020-09-25 03:13:26,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:13:26,254 INFO L225 Difference]: With dead ends: 4855 [2020-09-25 03:13:26,254 INFO L226 Difference]: Without dead ends: 4853 [2020-09-25 03:13:26,257 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 03:13:26,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4853 states. [2020-09-25 03:13:26,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4853 to 4019. [2020-09-25 03:13:26,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4019 states. [2020-09-25 03:13:26,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4019 states to 4019 states and 5362 transitions. [2020-09-25 03:13:26,371 INFO L78 Accepts]: Start accepts. Automaton has 4019 states and 5362 transitions. Word has length 85 [2020-09-25 03:13:26,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:13:26,372 INFO L479 AbstractCegarLoop]: Abstraction has 4019 states and 5362 transitions. [2020-09-25 03:13:26,372 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 03:13:26,372 INFO L276 IsEmpty]: Start isEmpty. Operand 4019 states and 5362 transitions. [2020-09-25 03:13:26,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-09-25 03:13:26,376 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:13:26,376 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:13:26,376 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-25 03:13:26,376 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:13:26,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:13:26,377 INFO L82 PathProgramCache]: Analyzing trace with hash -930439220, now seen corresponding path program 1 times [2020-09-25 03:13:26,377 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:13:26,377 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1488430748] [2020-09-25 03:13:26,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:13:26,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:26,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:26,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:26,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-25 03:13:26,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:26,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-09-25 03:13:26,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:26,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:13:26,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 03:13:26,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 03:13:26,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:13:26,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:13:26,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:26,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:26,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:26,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:13:26,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:26,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:13:26,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:26,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:13:26,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:13:26,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:13:26,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:13:26,484 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 03:13:26,484 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1488430748] [2020-09-25 03:13:26,485 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:13:26,485 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 03:13:26,485 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012938450] [2020-09-25 03:13:26,486 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 03:13:26,486 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:13:26,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 03:13:26,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 03:13:26,487 INFO L87 Difference]: Start difference. First operand 4019 states and 5362 transitions. Second operand 3 states. [2020-09-25 03:13:26,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:13:26,589 INFO L93 Difference]: Finished difference Result 11767 states and 15732 transitions. [2020-09-25 03:13:26,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 03:13:26,590 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 85 [2020-09-25 03:13:26,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:13:26,629 INFO L225 Difference]: With dead ends: 11767 [2020-09-25 03:13:26,629 INFO L226 Difference]: Without dead ends: 7797 [2020-09-25 03:13:26,640 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 03:13:26,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7797 states. [2020-09-25 03:13:26,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7797 to 7795. [2020-09-25 03:13:26,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7795 states. [2020-09-25 03:13:26,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7795 states to 7795 states and 10290 transitions. [2020-09-25 03:13:26,875 INFO L78 Accepts]: Start accepts. Automaton has 7795 states and 10290 transitions. Word has length 85 [2020-09-25 03:13:26,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:13:26,876 INFO L479 AbstractCegarLoop]: Abstraction has 7795 states and 10290 transitions. [2020-09-25 03:13:26,876 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 03:13:26,876 INFO L276 IsEmpty]: Start isEmpty. Operand 7795 states and 10290 transitions. [2020-09-25 03:13:26,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-09-25 03:13:26,883 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:13:26,883 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:13:26,883 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-25 03:13:26,884 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:13:26,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:13:26,884 INFO L82 PathProgramCache]: Analyzing trace with hash -1483413839, now seen corresponding path program 1 times [2020-09-25 03:13:26,885 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:13:26,885 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1825018648] [2020-09-25 03:13:26,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:13:26,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:26,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:26,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:26,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-25 03:13:26,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:26,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-09-25 03:13:26,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:26,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:13:26,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 03:13:26,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 03:13:26,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:13:26,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:13:26,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:26,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:26,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:26,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:13:26,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:26,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:13:26,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:26,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:13:26,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:13:26,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:13:26,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:13:26,983 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 03:13:26,983 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1825018648] [2020-09-25 03:13:26,984 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:13:26,984 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 03:13:26,984 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058123256] [2020-09-25 03:13:26,985 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 03:13:26,985 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:13:26,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 03:13:26,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 03:13:26,986 INFO L87 Difference]: Start difference. First operand 7795 states and 10290 transitions. Second operand 3 states. [2020-09-25 03:13:27,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:13:27,068 INFO L93 Difference]: Finished difference Result 9335 states and 12340 transitions. [2020-09-25 03:13:27,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 03:13:27,068 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 86 [2020-09-25 03:13:27,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:13:27,089 INFO L225 Difference]: With dead ends: 9335 [2020-09-25 03:13:27,089 INFO L226 Difference]: Without dead ends: 9333 [2020-09-25 03:13:27,093 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 03:13:27,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9333 states. [2020-09-25 03:13:27,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9333 to 7795. [2020-09-25 03:13:27,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7795 states. [2020-09-25 03:13:27,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7795 states to 7795 states and 10226 transitions. [2020-09-25 03:13:27,390 INFO L78 Accepts]: Start accepts. Automaton has 7795 states and 10226 transitions. Word has length 86 [2020-09-25 03:13:27,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:13:27,391 INFO L479 AbstractCegarLoop]: Abstraction has 7795 states and 10226 transitions. [2020-09-25 03:13:27,391 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 03:13:27,391 INFO L276 IsEmpty]: Start isEmpty. Operand 7795 states and 10226 transitions. [2020-09-25 03:13:27,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-09-25 03:13:27,398 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:13:27,398 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:13:27,398 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-25 03:13:27,398 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:13:27,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:13:27,399 INFO L82 PathProgramCache]: Analyzing trace with hash 1221401062, now seen corresponding path program 1 times [2020-09-25 03:13:27,399 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:13:27,399 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [280566065] [2020-09-25 03:13:27,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:13:27,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:27,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:27,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:27,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-25 03:13:27,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:27,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-09-25 03:13:27,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:27,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:13:27,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 03:13:27,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 03:13:27,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:13:27,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:13:27,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:27,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:27,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:27,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:13:27,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:27,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:13:27,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:27,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:13:27,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:13:27,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:13:27,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:13:27,495 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 03:13:27,495 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [280566065] [2020-09-25 03:13:27,496 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:13:27,496 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 03:13:27,496 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498198088] [2020-09-25 03:13:27,497 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 03:13:27,497 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:13:27,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 03:13:27,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 03:13:27,497 INFO L87 Difference]: Start difference. First operand 7795 states and 10226 transitions. Second operand 3 states. [2020-09-25 03:13:27,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:13:27,607 INFO L93 Difference]: Finished difference Result 22903 states and 30068 transitions. [2020-09-25 03:13:27,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 03:13:27,608 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 86 [2020-09-25 03:13:27,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:13:27,637 INFO L225 Difference]: With dead ends: 22903 [2020-09-25 03:13:27,638 INFO L226 Difference]: Without dead ends: 15157 [2020-09-25 03:13:27,655 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 03:13:27,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15157 states. [2020-09-25 03:13:27,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15157 to 15155. [2020-09-25 03:13:27,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15155 states. [2020-09-25 03:13:27,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15155 states to 15155 states and 19634 transitions. [2020-09-25 03:13:27,939 INFO L78 Accepts]: Start accepts. Automaton has 15155 states and 19634 transitions. Word has length 86 [2020-09-25 03:13:27,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:13:27,939 INFO L479 AbstractCegarLoop]: Abstraction has 15155 states and 19634 transitions. [2020-09-25 03:13:27,939 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 03:13:27,939 INFO L276 IsEmpty]: Start isEmpty. Operand 15155 states and 19634 transitions. [2020-09-25 03:13:27,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-09-25 03:13:27,950 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:13:27,950 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:13:27,951 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-09-25 03:13:27,951 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:13:27,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:13:27,951 INFO L82 PathProgramCache]: Analyzing trace with hash 1193948038, now seen corresponding path program 1 times [2020-09-25 03:13:27,952 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:13:27,952 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [303533833] [2020-09-25 03:13:27,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:13:27,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:27,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:28,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:28,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-09-25 03:13:28,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:28,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 163 [2020-09-25 03:13:28,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:28,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:13:28,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 03:13:28,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 03:13:28,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:13:28,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:13:28,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:28,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:28,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:28,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:13:28,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:28,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:13:28,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:28,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:13:28,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:13:28,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:13:28,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:13:28,163 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 03:13:28,163 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [303533833] [2020-09-25 03:13:28,165 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:13:28,166 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 03:13:28,166 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108802977] [2020-09-25 03:13:28,166 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 03:13:28,167 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:13:28,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 03:13:28,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 03:13:28,167 INFO L87 Difference]: Start difference. First operand 15155 states and 19634 transitions. Second operand 3 states. [2020-09-25 03:13:28,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:13:28,282 INFO L93 Difference]: Finished difference Result 17975 states and 23220 transitions. [2020-09-25 03:13:28,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 03:13:28,282 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 87 [2020-09-25 03:13:28,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:13:28,316 INFO L225 Difference]: With dead ends: 17975 [2020-09-25 03:13:28,316 INFO L226 Difference]: Without dead ends: 17973 [2020-09-25 03:13:28,323 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 03:13:28,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17973 states. [2020-09-25 03:13:28,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17973 to 15155. [2020-09-25 03:13:28,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15155 states. [2020-09-25 03:13:28,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15155 states to 15155 states and 19506 transitions. [2020-09-25 03:13:28,624 INFO L78 Accepts]: Start accepts. Automaton has 15155 states and 19506 transitions. Word has length 87 [2020-09-25 03:13:28,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:13:28,624 INFO L479 AbstractCegarLoop]: Abstraction has 15155 states and 19506 transitions. [2020-09-25 03:13:28,624 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 03:13:28,625 INFO L276 IsEmpty]: Start isEmpty. Operand 15155 states and 19506 transitions. [2020-09-25 03:13:28,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-09-25 03:13:28,634 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:13:28,635 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:13:28,635 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-09-25 03:13:28,635 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:13:28,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:13:28,635 INFO L82 PathProgramCache]: Analyzing trace with hash -791026560, now seen corresponding path program 1 times [2020-09-25 03:13:28,636 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:13:28,636 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [593134335] [2020-09-25 03:13:28,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:13:28,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:28,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:28,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:28,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-09-25 03:13:28,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:28,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 162 [2020-09-25 03:13:28,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:28,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:13:28,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 03:13:28,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 03:13:28,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:13:28,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:13:28,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:28,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:28,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:28,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:13:28,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:28,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:13:28,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:28,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:13:28,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:13:28,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:13:28,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:13:28,841 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 03:13:28,841 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [593134335] [2020-09-25 03:13:28,842 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:13:28,842 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 03:13:28,842 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013037311] [2020-09-25 03:13:28,842 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 03:13:28,843 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:13:28,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 03:13:28,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 03:13:28,843 INFO L87 Difference]: Start difference. First operand 15155 states and 19506 transitions. Second operand 3 states. [2020-09-25 03:13:29,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:13:29,049 INFO L93 Difference]: Finished difference Result 44599 states and 57396 transitions. [2020-09-25 03:13:29,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 03:13:29,050 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 87 [2020-09-25 03:13:29,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:13:29,115 INFO L225 Difference]: With dead ends: 44599 [2020-09-25 03:13:29,115 INFO L226 Difference]: Without dead ends: 29493 [2020-09-25 03:13:29,152 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 03:13:29,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29493 states. [2020-09-25 03:13:30,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29493 to 29491. [2020-09-25 03:13:30,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29491 states. [2020-09-25 03:13:30,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29491 states to 29491 states and 37426 transitions. [2020-09-25 03:13:30,500 INFO L78 Accepts]: Start accepts. Automaton has 29491 states and 37426 transitions. Word has length 87 [2020-09-25 03:13:30,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:13:30,501 INFO L479 AbstractCegarLoop]: Abstraction has 29491 states and 37426 transitions. [2020-09-25 03:13:30,501 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 03:13:30,501 INFO L276 IsEmpty]: Start isEmpty. Operand 29491 states and 37426 transitions. [2020-09-25 03:13:30,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-09-25 03:13:30,520 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:13:30,520 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:13:30,520 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-09-25 03:13:30,520 INFO L427 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:13:30,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:13:30,521 INFO L82 PathProgramCache]: Analyzing trace with hash -1707179323, now seen corresponding path program 1 times [2020-09-25 03:13:30,521 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:13:30,521 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [337760189] [2020-09-25 03:13:30,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:13:30,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:30,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:30,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:30,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-09-25 03:13:30,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:30,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-09-25 03:13:30,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:30,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:13:30,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 03:13:30,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 03:13:30,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:13:30,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:13:30,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:30,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:30,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:30,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:13:30,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:30,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:13:30,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:30,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:13:30,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:13:30,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:13:30,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:13:30,628 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 03:13:30,629 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [337760189] [2020-09-25 03:13:30,629 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:13:30,629 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 03:13:30,634 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156374684] [2020-09-25 03:13:30,635 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 03:13:30,636 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:13:30,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 03:13:30,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 03:13:30,636 INFO L87 Difference]: Start difference. First operand 29491 states and 37426 transitions. Second operand 3 states. [2020-09-25 03:13:30,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:13:30,864 INFO L93 Difference]: Finished difference Result 34615 states and 43572 transitions. [2020-09-25 03:13:30,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 03:13:30,865 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 88 [2020-09-25 03:13:30,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:13:30,961 INFO L225 Difference]: With dead ends: 34615 [2020-09-25 03:13:30,961 INFO L226 Difference]: Without dead ends: 34613 [2020-09-25 03:13:30,976 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 03:13:31,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34613 states. [2020-09-25 03:13:31,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34613 to 29491. [2020-09-25 03:13:31,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29491 states. [2020-09-25 03:13:31,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29491 states to 29491 states and 37170 transitions. [2020-09-25 03:13:31,785 INFO L78 Accepts]: Start accepts. Automaton has 29491 states and 37170 transitions. Word has length 88 [2020-09-25 03:13:31,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:13:31,786 INFO L479 AbstractCegarLoop]: Abstraction has 29491 states and 37170 transitions. [2020-09-25 03:13:31,786 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 03:13:31,786 INFO L276 IsEmpty]: Start isEmpty. Operand 29491 states and 37170 transitions. [2020-09-25 03:13:31,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-09-25 03:13:31,812 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:13:31,812 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:13:31,812 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-09-25 03:13:31,812 INFO L427 AbstractCegarLoop]: === Iteration 19 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:13:31,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:13:31,813 INFO L82 PathProgramCache]: Analyzing trace with hash 1248226970, now seen corresponding path program 1 times [2020-09-25 03:13:31,813 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:13:31,814 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [247983058] [2020-09-25 03:13:31,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:13:31,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:31,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:31,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:31,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-09-25 03:13:31,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:31,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-09-25 03:13:31,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:31,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:13:31,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 03:13:31,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 03:13:31,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:13:31,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:13:31,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:31,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:31,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:31,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:13:31,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:31,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:13:31,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:31,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:13:31,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:13:31,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:13:31,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:13:31,958 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 03:13:31,958 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [247983058] [2020-09-25 03:13:31,958 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:13:31,958 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 03:13:31,959 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592679680] [2020-09-25 03:13:31,960 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 03:13:31,961 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:13:31,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 03:13:31,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 03:13:31,962 INFO L87 Difference]: Start difference. First operand 29491 states and 37170 transitions. Second operand 3 states. [2020-09-25 03:13:32,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:13:32,448 INFO L93 Difference]: Finished difference Result 86839 states and 109364 transitions. [2020-09-25 03:13:32,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 03:13:32,449 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 88 [2020-09-25 03:13:32,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:13:32,571 INFO L225 Difference]: With dead ends: 86839 [2020-09-25 03:13:32,571 INFO L226 Difference]: Without dead ends: 57397 [2020-09-25 03:13:32,635 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 03:13:32,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57397 states. [2020-09-25 03:13:33,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57397 to 57395. [2020-09-25 03:13:33,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57395 states. [2020-09-25 03:13:33,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57395 states to 57395 states and 71218 transitions. [2020-09-25 03:13:33,847 INFO L78 Accepts]: Start accepts. Automaton has 57395 states and 71218 transitions. Word has length 88 [2020-09-25 03:13:33,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:13:33,848 INFO L479 AbstractCegarLoop]: Abstraction has 57395 states and 71218 transitions. [2020-09-25 03:13:33,848 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 03:13:33,848 INFO L276 IsEmpty]: Start isEmpty. Operand 57395 states and 71218 transitions. [2020-09-25 03:13:33,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-09-25 03:13:33,886 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:13:33,886 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:13:33,886 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-09-25 03:13:33,886 INFO L427 AbstractCegarLoop]: === Iteration 20 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:13:33,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:13:33,887 INFO L82 PathProgramCache]: Analyzing trace with hash 40577332, now seen corresponding path program 1 times [2020-09-25 03:13:33,887 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:13:33,887 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [285358308] [2020-09-25 03:13:33,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:13:33,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:33,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:33,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:33,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-09-25 03:13:33,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:33,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-09-25 03:13:33,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:33,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:13:33,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-25 03:13:33,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 03:13:33,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:13:33,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:13:33,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:33,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:33,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:33,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:13:33,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:33,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:13:33,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:33,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:13:33,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:13:33,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:13:33,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:13:34,002 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 03:13:34,003 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [285358308] [2020-09-25 03:13:34,003 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:13:34,003 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 03:13:34,003 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181912751] [2020-09-25 03:13:34,004 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 03:13:34,004 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:13:34,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 03:13:34,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 03:13:34,004 INFO L87 Difference]: Start difference. First operand 57395 states and 71218 transitions. Second operand 3 states. [2020-09-25 03:13:35,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:13:35,629 INFO L93 Difference]: Finished difference Result 169015 states and 209460 transitions. [2020-09-25 03:13:35,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 03:13:35,630 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 89 [2020-09-25 03:13:35,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:13:35,795 INFO L225 Difference]: With dead ends: 169015 [2020-09-25 03:13:35,795 INFO L226 Difference]: Without dead ends: 85301 [2020-09-25 03:13:35,883 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 03:13:35,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85301 states. [2020-09-25 03:13:37,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85301 to 85299. [2020-09-25 03:13:37,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85299 states. [2020-09-25 03:13:37,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85299 states to 85299 states and 103218 transitions. [2020-09-25 03:13:37,323 INFO L78 Accepts]: Start accepts. Automaton has 85299 states and 103218 transitions. Word has length 89 [2020-09-25 03:13:37,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:13:37,323 INFO L479 AbstractCegarLoop]: Abstraction has 85299 states and 103218 transitions. [2020-09-25 03:13:37,323 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 03:13:37,324 INFO L276 IsEmpty]: Start isEmpty. Operand 85299 states and 103218 transitions. [2020-09-25 03:13:37,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-09-25 03:13:37,369 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:13:37,369 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:13:37,371 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-09-25 03:13:37,372 INFO L427 AbstractCegarLoop]: === Iteration 21 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:13:37,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:13:37,373 INFO L82 PathProgramCache]: Analyzing trace with hash -1447813926, now seen corresponding path program 1 times [2020-09-25 03:13:37,373 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:13:37,373 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1796925455] [2020-09-25 03:13:37,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:13:37,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:37,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:37,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:37,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-09-25 03:13:37,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:37,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-09-25 03:13:37,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:37,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:13:37,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-25 03:13:37,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 03:13:37,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:13:37,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:13:37,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:37,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:37,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:37,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:13:37,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:37,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:13:37,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:37,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:13:37,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:13:37,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:13:37,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:13:37,491 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 03:13:37,492 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1796925455] [2020-09-25 03:13:37,492 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:13:37,492 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 03:13:37,492 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666938601] [2020-09-25 03:13:37,493 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 03:13:37,493 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:13:37,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 03:13:37,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 03:13:37,494 INFO L87 Difference]: Start difference. First operand 85299 states and 103218 transitions. Second operand 3 states. [2020-09-25 03:13:39,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:13:39,589 INFO L93 Difference]: Finished difference Result 94519 states and 112948 transitions. [2020-09-25 03:13:39,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 03:13:39,589 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 89 [2020-09-25 03:13:39,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:13:39,678 INFO L225 Difference]: With dead ends: 94519 [2020-09-25 03:13:39,679 INFO L226 Difference]: Without dead ends: 66613 [2020-09-25 03:13:39,709 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 03:13:39,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66613 states. [2020-09-25 03:13:40,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66613 to 57395. [2020-09-25 03:13:40,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57395 states. [2020-09-25 03:13:40,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57395 states to 57395 states and 68658 transitions. [2020-09-25 03:13:40,792 INFO L78 Accepts]: Start accepts. Automaton has 57395 states and 68658 transitions. Word has length 89 [2020-09-25 03:13:40,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:13:40,793 INFO L479 AbstractCegarLoop]: Abstraction has 57395 states and 68658 transitions. [2020-09-25 03:13:40,793 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 03:13:40,793 INFO L276 IsEmpty]: Start isEmpty. Operand 57395 states and 68658 transitions. [2020-09-25 03:13:40,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-09-25 03:13:40,814 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:13:40,814 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:13:40,814 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-09-25 03:13:40,815 INFO L427 AbstractCegarLoop]: === Iteration 22 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:13:40,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:13:40,815 INFO L82 PathProgramCache]: Analyzing trace with hash -1997420839, now seen corresponding path program 1 times [2020-09-25 03:13:40,815 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:13:40,818 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1000568347] [2020-09-25 03:13:40,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:13:40,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:40,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:40,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:40,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-09-25 03:13:40,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:40,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-09-25 03:13:40,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:40,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:13:40,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 83 [2020-09-25 03:13:40,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 03:13:40,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:13:40,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:13:40,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:40,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:40,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:40,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:13:40,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:40,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:13:40,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:40,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:13:40,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:13:40,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:13:40,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:13:40,927 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 03:13:40,927 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1000568347] [2020-09-25 03:13:40,927 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:13:40,927 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 03:13:40,928 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069589062] [2020-09-25 03:13:40,928 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 03:13:40,928 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:13:40,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 03:13:40,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 03:13:40,929 INFO L87 Difference]: Start difference. First operand 57395 states and 68658 transitions. Second operand 3 states. [2020-09-25 03:13:41,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:13:41,191 INFO L93 Difference]: Finished difference Result 57395 states and 68658 transitions. [2020-09-25 03:13:41,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 03:13:41,192 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 90 [2020-09-25 03:13:41,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:13:41,193 INFO L225 Difference]: With dead ends: 57395 [2020-09-25 03:13:41,193 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 03:13:41,262 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 03:13:41,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 03:13:41,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 03:13:41,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 03:13:41,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 03:13:41,263 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 90 [2020-09-25 03:13:41,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:13:41,264 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 03:13:41,264 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 03:13:41,264 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 03:13:41,264 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 03:13:41,264 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-09-25 03:13:41,267 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 03:13:41,466 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-09-25 03:13:41,466 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-25 03:13:41,466 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-25 03:13:41,466 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-25 03:13:41,466 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-25 03:13:41,466 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-25 03:13:41,467 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 4 177) no Hoare annotation was computed. [2020-09-25 03:13:41,467 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-09-25 03:13:41,467 INFO L268 CegarLoopResult]: For program point L19(line 19) no Hoare annotation was computed. [2020-09-25 03:13:41,468 INFO L268 CegarLoopResult]: For program point L168(line 168) no Hoare annotation was computed. [2020-09-25 03:13:41,468 INFO L264 CegarLoopResult]: At program point L168-1(lines 5 177) the Hoare annotation is: false [2020-09-25 03:13:41,468 INFO L268 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-09-25 03:13:41,468 INFO L268 CegarLoopResult]: For program point L36-1(line 36) no Hoare annotation was computed. [2020-09-25 03:13:41,469 INFO L268 CegarLoopResult]: For program point L36-2(line 36) no Hoare annotation was computed. [2020-09-25 03:13:41,469 INFO L268 CegarLoopResult]: For program point L119(line 119) no Hoare annotation was computed. [2020-09-25 03:13:41,469 INFO L268 CegarLoopResult]: For program point L152-1(lines 42 172) no Hoare annotation was computed. [2020-09-25 03:13:41,469 INFO L268 CegarLoopResult]: For program point L53(line 53) no Hoare annotation was computed. [2020-09-25 03:13:41,469 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-09-25 03:13:41,469 INFO L268 CegarLoopResult]: For program point L103-1(lines 42 172) no Hoare annotation was computed. [2020-09-25 03:13:41,469 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-09-25 03:13:41,469 INFO L268 CegarLoopResult]: For program point L153(line 153) no Hoare annotation was computed. [2020-09-25 03:13:41,470 INFO L268 CegarLoopResult]: For program point L87-1(lines 42 172) no Hoare annotation was computed. [2020-09-25 03:13:41,472 INFO L268 CegarLoopResult]: For program point L21(line 21) no Hoare annotation was computed. [2020-09-25 03:13:41,472 INFO L268 CegarLoopResult]: For program point L21-1(line 21) no Hoare annotation was computed. [2020-09-25 03:13:41,472 INFO L268 CegarLoopResult]: For program point L21-2(line 21) no Hoare annotation was computed. [2020-09-25 03:13:41,472 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 4 177) no Hoare annotation was computed. [2020-09-25 03:13:41,472 INFO L268 CegarLoopResult]: For program point L104(line 104) no Hoare annotation was computed. [2020-09-25 03:13:41,472 INFO L268 CegarLoopResult]: For program point L137-1(lines 42 172) no Hoare annotation was computed. [2020-09-25 03:13:41,473 INFO L268 CegarLoopResult]: For program point L71(lines 71 73) no Hoare annotation was computed. [2020-09-25 03:13:41,473 INFO L268 CegarLoopResult]: For program point L71-2(lines 42 172) no Hoare annotation was computed. [2020-09-25 03:13:41,473 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-09-25 03:13:41,473 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-09-25 03:13:41,473 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-09-25 03:13:41,473 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-09-25 03:13:41,473 INFO L268 CegarLoopResult]: For program point L138(line 138) no Hoare annotation was computed. [2020-09-25 03:13:41,474 INFO L268 CegarLoopResult]: For program point L72(line 72) no Hoare annotation was computed. [2020-09-25 03:13:41,474 INFO L268 CegarLoopResult]: For program point L6(line 6) no Hoare annotation was computed. [2020-09-25 03:13:41,474 INFO L268 CegarLoopResult]: For program point L6-1(line 6) no Hoare annotation was computed. [2020-09-25 03:13:41,474 INFO L268 CegarLoopResult]: For program point L122-1(lines 42 172) no Hoare annotation was computed. [2020-09-25 03:13:41,474 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-09-25 03:13:41,474 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-09-25 03:13:41,474 INFO L268 CegarLoopResult]: For program point L7(line 7) no Hoare annotation was computed. [2020-09-25 03:13:41,475 INFO L268 CegarLoopResult]: For program point L123(line 123) no Hoare annotation was computed. [2020-09-25 03:13:41,475 INFO L268 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-09-25 03:13:41,475 INFO L268 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-09-25 03:13:41,475 INFO L268 CegarLoopResult]: For program point L24-1(line 24) no Hoare annotation was computed. [2020-09-25 03:13:41,475 INFO L268 CegarLoopResult]: For program point L24-2(line 24) no Hoare annotation was computed. [2020-09-25 03:13:41,476 INFO L271 CegarLoopResult]: At program point L173(lines 5 177) the Hoare annotation is: true [2020-09-25 03:13:41,476 INFO L268 CegarLoopResult]: For program point L107-1(lines 42 172) no Hoare annotation was computed. [2020-09-25 03:13:41,476 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-09-25 03:13:41,476 INFO L268 CegarLoopResult]: For program point L157-1(lines 42 172) no Hoare annotation was computed. [2020-09-25 03:13:41,477 INFO L268 CegarLoopResult]: For program point L91-1(lines 42 172) no Hoare annotation was computed. [2020-09-25 03:13:41,478 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-09-25 03:13:41,478 INFO L268 CegarLoopResult]: For program point L108(line 108) no Hoare annotation was computed. [2020-09-25 03:13:41,478 INFO L268 CegarLoopResult]: For program point L75-1(lines 42 172) no Hoare annotation was computed. [2020-09-25 03:13:41,478 INFO L268 CegarLoopResult]: For program point L9(line 9) no Hoare annotation was computed. [2020-09-25 03:13:41,478 INFO L268 CegarLoopResult]: For program point L9-1(line 9) no Hoare annotation was computed. [2020-09-25 03:13:41,478 INFO L268 CegarLoopResult]: For program point L9-2(line 9) no Hoare annotation was computed. [2020-09-25 03:13:41,478 INFO L268 CegarLoopResult]: For program point L158(line 158) no Hoare annotation was computed. [2020-09-25 03:13:41,478 INFO L268 CegarLoopResult]: For program point L92(line 92) no Hoare annotation was computed. [2020-09-25 03:13:41,478 INFO L268 CegarLoopResult]: For program point L59(line 59) no Hoare annotation was computed. [2020-09-25 03:13:41,479 INFO L268 CegarLoopResult]: For program point L142-1(lines 42 172) no Hoare annotation was computed. [2020-09-25 03:13:41,479 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-09-25 03:13:41,479 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-09-25 03:13:41,479 INFO L268 CegarLoopResult]: For program point L10(line 10) no Hoare annotation was computed. [2020-09-25 03:13:41,479 INFO L268 CegarLoopResult]: For program point L43-1(line 43) no Hoare annotation was computed. [2020-09-25 03:13:41,479 INFO L268 CegarLoopResult]: For program point L43-2(line 43) no Hoare annotation was computed. [2020-09-25 03:13:41,479 INFO L268 CegarLoopResult]: For program point L159(line 159) no Hoare annotation was computed. [2020-09-25 03:13:41,479 INFO L268 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-09-25 03:13:41,479 INFO L268 CegarLoopResult]: For program point L27-1(line 27) no Hoare annotation was computed. [2020-09-25 03:13:41,480 INFO L268 CegarLoopResult]: For program point L27-2(line 27) no Hoare annotation was computed. [2020-09-25 03:13:41,480 INFO L268 CegarLoopResult]: For program point L176(line 176) no Hoare annotation was computed. [2020-09-25 03:13:41,480 INFO L268 CegarLoopResult]: For program point L143(line 143) no Hoare annotation was computed. [2020-09-25 03:13:41,480 INFO L268 CegarLoopResult]: For program point L44(lines 44 46) no Hoare annotation was computed. [2020-09-25 03:13:41,480 INFO L268 CegarLoopResult]: For program point L127-1(lines 42 172) no Hoare annotation was computed. [2020-09-25 03:13:41,481 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-09-25 03:13:41,481 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-09-25 03:13:41,481 INFO L268 CegarLoopResult]: For program point L144(line 144) no Hoare annotation was computed. [2020-09-25 03:13:41,481 INFO L268 CegarLoopResult]: For program point L111-1(lines 42 172) no Hoare annotation was computed. [2020-09-25 03:13:41,481 INFO L268 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-09-25 03:13:41,481 INFO L268 CegarLoopResult]: For program point L12-1(line 12) no Hoare annotation was computed. [2020-09-25 03:13:41,481 INFO L268 CegarLoopResult]: For program point L12-2(line 12) no Hoare annotation was computed. [2020-09-25 03:13:41,481 INFO L268 CegarLoopResult]: For program point L128(line 128) no Hoare annotation was computed. [2020-09-25 03:13:41,481 INFO L268 CegarLoopResult]: For program point L95-1(lines 42 172) no Hoare annotation was computed. [2020-09-25 03:13:41,482 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-09-25 03:13:41,482 INFO L268 CegarLoopResult]: For program point L79-1(lines 42 172) no Hoare annotation was computed. [2020-09-25 03:13:41,482 INFO L268 CegarLoopResult]: For program point L13(line 13) no Hoare annotation was computed. [2020-09-25 03:13:41,482 INFO L268 CegarLoopResult]: For program point L129(line 129) no Hoare annotation was computed. [2020-09-25 03:13:41,482 INFO L268 CegarLoopResult]: For program point L162-1(lines 42 172) no Hoare annotation was computed. [2020-09-25 03:13:41,482 INFO L268 CegarLoopResult]: For program point L96(line 96) no Hoare annotation was computed. [2020-09-25 03:13:41,482 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 175) no Hoare annotation was computed. [2020-09-25 03:13:41,483 INFO L268 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-09-25 03:13:41,483 INFO L268 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-09-25 03:13:41,483 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 4 177) the Hoare annotation is: true [2020-09-25 03:13:41,484 INFO L268 CegarLoopResult]: For program point L30-1(line 30) no Hoare annotation was computed. [2020-09-25 03:13:41,484 INFO L268 CegarLoopResult]: For program point L30-2(line 30) no Hoare annotation was computed. [2020-09-25 03:13:41,484 INFO L268 CegarLoopResult]: For program point L80(line 80) no Hoare annotation was computed. [2020-09-25 03:13:41,484 INFO L268 CegarLoopResult]: For program point L47(line 47) no Hoare annotation was computed. [2020-09-25 03:13:41,484 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-09-25 03:13:41,484 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-09-25 03:13:41,484 INFO L268 CegarLoopResult]: For program point L147-1(lines 42 172) no Hoare annotation was computed. [2020-09-25 03:13:41,484 INFO L268 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2020-09-25 03:13:41,485 INFO L268 CegarLoopResult]: For program point L15-1(line 15) no Hoare annotation was computed. [2020-09-25 03:13:41,485 INFO L268 CegarLoopResult]: For program point L15-2(line 15) no Hoare annotation was computed. [2020-09-25 03:13:41,485 INFO L268 CegarLoopResult]: For program point L164(line 164) no Hoare annotation was computed. [2020-09-25 03:13:41,485 INFO L268 CegarLoopResult]: For program point L65(line 65) no Hoare annotation was computed. [2020-09-25 03:13:41,485 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-09-25 03:13:41,485 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-09-25 03:13:41,486 INFO L268 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-09-25 03:13:41,486 INFO L268 CegarLoopResult]: For program point L132-1(lines 42 172) no Hoare annotation was computed. [2020-09-25 03:13:41,486 INFO L268 CegarLoopResult]: For program point L99-1(lines 42 172) no Hoare annotation was computed. [2020-09-25 03:13:41,486 INFO L268 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-09-25 03:13:41,486 INFO L268 CegarLoopResult]: For program point L33-1(line 33) no Hoare annotation was computed. [2020-09-25 03:13:41,486 INFO L268 CegarLoopResult]: For program point L33-2(line 33) no Hoare annotation was computed. [2020-09-25 03:13:41,487 INFO L268 CegarLoopResult]: For program point L149(line 149) no Hoare annotation was computed. [2020-09-25 03:13:41,487 INFO L268 CegarLoopResult]: For program point L83-1(lines 42 172) no Hoare annotation was computed. [2020-09-25 03:13:41,487 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-09-25 03:13:41,487 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-09-25 03:13:41,487 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-09-25 03:13:41,487 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-09-25 03:13:41,487 INFO L268 CegarLoopResult]: For program point L84(line 84) no Hoare annotation was computed. [2020-09-25 03:13:41,488 INFO L268 CegarLoopResult]: For program point L117-1(lines 42 172) no Hoare annotation was computed. [2020-09-25 03:13:41,488 INFO L268 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-09-25 03:13:41,488 INFO L268 CegarLoopResult]: For program point L18(line 18) no Hoare annotation was computed. [2020-09-25 03:13:41,488 INFO L268 CegarLoopResult]: For program point L18-1(line 18) no Hoare annotation was computed. [2020-09-25 03:13:41,488 INFO L268 CegarLoopResult]: For program point L18-2(line 18) no Hoare annotation was computed. [2020-09-25 03:13:41,488 INFO L268 CegarLoopResult]: For program point L134(line 134) no Hoare annotation was computed. [2020-09-25 03:13:41,488 INFO L271 CegarLoopResult]: At program point L167-1(lines 42 172) the Hoare annotation is: true [2020-09-25 03:13:41,509 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 03:13:41 BoogieIcfgContainer [2020-09-25 03:13:41,510 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 03:13:41,520 INFO L168 Benchmark]: Toolchain (without parser) took 20006.38 ms. Allocated memory was 140.5 MB in the beginning and 1.3 GB in the end (delta: 1.2 GB). Free memory was 103.7 MB in the beginning and 1.0 GB in the end (delta: -934.4 MB). Peak memory consumption was 969.9 MB. Max. memory is 7.1 GB. [2020-09-25 03:13:41,521 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-25 03:13:41,522 INFO L168 Benchmark]: CACSL2BoogieTranslator took 413.00 ms. Allocated memory is still 140.5 MB. Free memory was 103.1 MB in the beginning and 92.1 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. [2020-09-25 03:13:41,522 INFO L168 Benchmark]: Boogie Preprocessor took 130.23 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 92.1 MB in the beginning and 180.8 MB in the end (delta: -88.7 MB). Peak memory consumption was 12.4 MB. Max. memory is 7.1 GB. [2020-09-25 03:13:41,523 INFO L168 Benchmark]: RCFGBuilder took 537.02 ms. Allocated memory is still 203.4 MB. Free memory was 180.8 MB in the beginning and 154.7 MB in the end (delta: 26.0 MB). Peak memory consumption was 26.0 MB. Max. memory is 7.1 GB. [2020-09-25 03:13:41,523 INFO L168 Benchmark]: TraceAbstraction took 18917.63 ms. Allocated memory was 203.4 MB in the beginning and 1.3 GB in the end (delta: 1.1 GB). Free memory was 154.1 MB in the beginning and 1.0 GB in the end (delta: -884.0 MB). Peak memory consumption was 957.4 MB. Max. memory is 7.1 GB. [2020-09-25 03:13:41,531 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 413.00 ms. Allocated memory is still 140.5 MB. Free memory was 103.1 MB in the beginning and 92.1 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 130.23 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 92.1 MB in the beginning and 180.8 MB in the end (delta: -88.7 MB). Peak memory consumption was 12.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 537.02 ms. Allocated memory is still 203.4 MB. Free memory was 180.8 MB in the beginning and 154.7 MB in the end (delta: 26.0 MB). Peak memory consumption was 26.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 18917.63 ms. Allocated memory was 203.4 MB in the beginning and 1.3 GB in the end (delta: 1.1 GB). Free memory was 154.1 MB in the beginning and 1.0 GB in the end (delta: -884.0 MB). Peak memory consumption was 957.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 175]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 42]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 5]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 5]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 128 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 18.5s, OverallIterations: 22, TraceHistogramMax: 1, AutomataDifference: 7.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4343 SDtfs, 1594 SDslu, 3111 SDs, 0 SdLazy, 109 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 110 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=85299occurred in iteration=20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 7.6s AutomataMinimizationTime, 22 MinimizatonAttempts, 20636 StatesRemovedByMinimization, 21 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 2057 NumberOfFragments, 7 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.8s InterpolantComputationTime, 1859 NumberOfCodeBlocks, 1859 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 1837 ConstructedInterpolants, 0 QuantifiedInterpolants, 195877 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 22 InterpolantComputations, 22 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...