/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --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_8.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 06:39:22,385 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 06:39:22,389 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 06:39:22,416 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 06:39:22,417 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 06:39:22,419 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 06:39:22,426 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 06:39:22,429 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 06:39:22,433 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 06:39:22,434 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 06:39:22,435 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 06:39:22,437 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 06:39:22,439 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 06:39:22,440 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 06:39:22,444 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 06:39:22,445 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 06:39:22,448 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 06:39:22,449 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 06:39:22,451 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 06:39:22,454 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 06:39:22,459 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 06:39:22,460 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 06:39:22,463 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 06:39:22,464 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 06:39:22,469 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 06:39:22,469 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 06:39:22,470 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 06:39:22,472 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 06:39:22,473 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 06:39:22,474 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 06:39:22,475 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 06:39:22,475 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 06:39:22,476 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 06:39:22,477 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 06:39:22,478 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 06:39:22,479 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 06:39:22,489 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 06:39:22,489 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 06:39:22,489 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 06:39:22,495 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 06:39:22,495 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 06:39:22,496 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 06:39:22,546 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 06:39:22,547 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 06:39:22,549 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 06:39:22,549 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 06:39:22,549 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 06:39:22,550 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 06:39:22,550 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 06:39:22,550 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 06:39:22,551 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 06:39:22,551 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 06:39:22,552 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 06:39:22,552 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 06:39:22,552 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 06:39:22,553 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 06:39:22,553 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 06:39:22,554 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 06:39:22,554 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 06:39:22,554 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 06:39:22,554 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 06:39:22,555 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 06:39:22,555 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 06:39:22,555 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 06:39:22,555 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 06:39:22,555 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 06:39:22,556 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 06:39:22,556 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 06:39:22,556 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 06:39:22,556 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 06:39:22,556 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 06:39:22,556 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; [2020-09-25 06:39:22,989 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 06:39:23,009 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 06:39:23,015 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 06:39:23,016 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 06:39:23,016 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 06:39:23,017 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/locks/test_locks_8.c [2020-09-25 06:39:23,088 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7bff247bf/3203a525861e4d80b20d688d60950f12/FLAGa978adce7 [2020-09-25 06:39:23,600 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 06:39:23,602 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/locks/test_locks_8.c [2020-09-25 06:39:23,612 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7bff247bf/3203a525861e4d80b20d688d60950f12/FLAGa978adce7 [2020-09-25 06:39:23,938 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7bff247bf/3203a525861e4d80b20d688d60950f12 [2020-09-25 06:39:23,952 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 06:39:23,957 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 06:39:23,959 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 06:39:23,959 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 06:39:23,964 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 06:39:23,965 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:39:23" (1/1) ... [2020-09-25 06:39:23,970 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41a03fc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:39:23, skipping insertion in model container [2020-09-25 06:39:23,970 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:39:23" (1/1) ... [2020-09-25 06:39:23,980 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 06:39:24,009 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 06:39:24,239 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:39:24,245 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 06:39:24,275 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:39:24,295 INFO L208 MainTranslator]: Completed translation [2020-09-25 06:39:24,295 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:39:24 WrapperNode [2020-09-25 06:39:24,295 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 06:39:24,296 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 06:39:24,297 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 06:39:24,297 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 06:39:24,406 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:39:24" (1/1) ... [2020-09-25 06:39:24,407 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:39:24" (1/1) ... [2020-09-25 06:39:24,415 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:39:24" (1/1) ... [2020-09-25 06:39:24,415 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:39:24" (1/1) ... [2020-09-25 06:39:24,421 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:39:24" (1/1) ... [2020-09-25 06:39:24,432 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:39:24" (1/1) ... [2020-09-25 06:39:24,434 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:39:24" (1/1) ... [2020-09-25 06:39:24,436 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 06:39:24,437 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 06:39:24,437 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 06:39:24,437 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 06:39:24,439 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:39:24" (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 06:39:24,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 06:39:24,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 06:39:24,524 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 06:39:24,524 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 06:39:24,524 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 06:39:24,524 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 06:39:24,524 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 06:39:24,525 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 06:39:24,938 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 06:39:24,938 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 06:39:24,944 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:39:24 BoogieIcfgContainer [2020-09-25 06:39:24,945 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 06:39:24,946 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 06:39:24,946 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 06:39:24,950 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 06:39:24,950 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 06:39:23" (1/3) ... [2020-09-25 06:39:24,951 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64f57d0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:39:24, skipping insertion in model container [2020-09-25 06:39:24,951 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:39:24" (2/3) ... [2020-09-25 06:39:24,951 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64f57d0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:39:24, skipping insertion in model container [2020-09-25 06:39:24,952 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:39:24" (3/3) ... [2020-09-25 06:39:24,954 INFO L109 eAbstractionObserver]: Analyzing ICFG test_locks_8.c [2020-09-25 06:39:24,963 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 06:39:24,973 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 06:39:24,995 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 06:39:25,026 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 06:39:25,026 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 06:39:25,026 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 06:39:25,027 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 06:39:25,027 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 06:39:25,027 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 06:39:25,027 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 06:39:25,027 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 06:39:25,051 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states. [2020-09-25 06:39:25,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-09-25 06:39:25,061 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:39:25,062 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] [2020-09-25 06:39:25,063 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:39:25,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:39:25,070 INFO L82 PathProgramCache]: Analyzing trace with hash 1717644884, now seen corresponding path program 1 times [2020-09-25 06:39:25,080 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:39:25,080 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [180702579] [2020-09-25 06:39:25,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:39:25,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:25,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:25,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:25,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-09-25 06:39:25,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:25,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 187 [2020-09-25 06:39:25,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:25,426 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:25,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:39:25,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 57 [2020-09-25 06:39:25,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 06:39:25,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-09-25 06:39:25,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:39:25,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:25,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:25,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:25,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:39:25,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:25,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:39:25,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:25,523 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:25,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:25,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:25,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:25,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:25,543 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 06:39:25,544 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [180702579] [2020-09-25 06:39:25,546 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:39:25,547 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 06:39:25,548 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084105980] [2020-09-25 06:39:25,555 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 06:39:25,555 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:39:25,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 06:39:25,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:39:25,578 INFO L87 Difference]: Start difference. First operand 98 states. Second operand 3 states. [2020-09-25 06:39:25,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:39:25,655 INFO L93 Difference]: Finished difference Result 213 states and 291 transitions. [2020-09-25 06:39:25,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 06:39:25,657 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 61 [2020-09-25 06:39:25,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:39:25,676 INFO L225 Difference]: With dead ends: 213 [2020-09-25 06:39:25,676 INFO L226 Difference]: Without dead ends: 144 [2020-09-25 06:39:25,681 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 06:39:25,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2020-09-25 06:39:25,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 142. [2020-09-25 06:39:25,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2020-09-25 06:39:25,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 186 transitions. [2020-09-25 06:39:25,747 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 186 transitions. Word has length 61 [2020-09-25 06:39:25,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:39:25,748 INFO L479 AbstractCegarLoop]: Abstraction has 142 states and 186 transitions. [2020-09-25 06:39:25,748 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 06:39:25,748 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 186 transitions. [2020-09-25 06:39:25,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-09-25 06:39:25,751 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:39:25,751 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] [2020-09-25 06:39:25,752 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 06:39:25,752 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:39:25,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:39:25,752 INFO L82 PathProgramCache]: Analyzing trace with hash 16380224, now seen corresponding path program 1 times [2020-09-25 06:39:25,753 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:39:25,753 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1770843878] [2020-09-25 06:39:25,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:39:25,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:25,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:25,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:25,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-09-25 06:39:25,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:25,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 151 [2020-09-25 06:39:25,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:25,928 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:25,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:39:25,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 58 [2020-09-25 06:39:25,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 06:39:25,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:25,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:39:25,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:25,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:25,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:25,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:39:25,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:25,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:39:25,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:25,974 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:25,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:25,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:25,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:25,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:25,984 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 06:39:25,985 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1770843878] [2020-09-25 06:39:25,986 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:39:25,986 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 06:39:25,987 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801749823] [2020-09-25 06:39:25,990 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 06:39:25,991 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:39:25,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 06:39:25,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:39:25,993 INFO L87 Difference]: Start difference. First operand 142 states and 186 transitions. Second operand 3 states. [2020-09-25 06:39:26,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:39:26,034 INFO L93 Difference]: Finished difference Result 173 states and 229 transitions. [2020-09-25 06:39:26,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 06:39:26,035 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 62 [2020-09-25 06:39:26,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:39:26,038 INFO L225 Difference]: With dead ends: 173 [2020-09-25 06:39:26,038 INFO L226 Difference]: Without dead ends: 171 [2020-09-25 06:39:26,039 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 06:39:26,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2020-09-25 06:39:26,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 142. [2020-09-25 06:39:26,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2020-09-25 06:39:26,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 185 transitions. [2020-09-25 06:39:26,055 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 185 transitions. Word has length 62 [2020-09-25 06:39:26,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:39:26,056 INFO L479 AbstractCegarLoop]: Abstraction has 142 states and 185 transitions. [2020-09-25 06:39:26,056 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 06:39:26,056 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 185 transitions. [2020-09-25 06:39:26,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-09-25 06:39:26,058 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:39:26,059 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] [2020-09-25 06:39:26,059 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 06:39:26,059 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:39:26,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:39:26,060 INFO L82 PathProgramCache]: Analyzing trace with hash 1707628474, now seen corresponding path program 1 times [2020-09-25 06:39:26,060 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:39:26,060 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [669793438] [2020-09-25 06:39:26,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:39:26,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:26,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:26,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:26,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-09-25 06:39:26,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:26,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 142 [2020-09-25 06:39:26,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:26,222 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:26,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:39:26,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 58 [2020-09-25 06:39:26,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 06:39:26,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:26,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:39:26,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:26,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:26,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:26,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:39:26,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:26,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:39:26,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:26,256 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:26,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:26,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:26,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:26,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:26,263 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 06:39:26,264 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [669793438] [2020-09-25 06:39:26,264 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:39:26,264 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 06:39:26,265 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956390821] [2020-09-25 06:39:26,265 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 06:39:26,265 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:39:26,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 06:39:26,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:39:26,266 INFO L87 Difference]: Start difference. First operand 142 states and 185 transitions. Second operand 3 states. [2020-09-25 06:39:26,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:39:26,290 INFO L93 Difference]: Finished difference Result 346 states and 473 transitions. [2020-09-25 06:39:26,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 06:39:26,290 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 62 [2020-09-25 06:39:26,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:39:26,299 INFO L225 Difference]: With dead ends: 346 [2020-09-25 06:39:26,299 INFO L226 Difference]: Without dead ends: 241 [2020-09-25 06:39:26,301 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 06:39:26,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2020-09-25 06:39:26,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 239. [2020-09-25 06:39:26,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 239 states. [2020-09-25 06:39:26,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 320 transitions. [2020-09-25 06:39:26,339 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 320 transitions. Word has length 62 [2020-09-25 06:39:26,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:39:26,343 INFO L479 AbstractCegarLoop]: Abstraction has 239 states and 320 transitions. [2020-09-25 06:39:26,343 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 06:39:26,343 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 320 transitions. [2020-09-25 06:39:26,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-09-25 06:39:26,348 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:39:26,348 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] [2020-09-25 06:39:26,349 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 06:39:26,349 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:39:26,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:39:26,349 INFO L82 PathProgramCache]: Analyzing trace with hash -298745719, now seen corresponding path program 1 times [2020-09-25 06:39:26,352 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:39:26,353 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1401526617] [2020-09-25 06:39:26,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:39:26,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:26,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:26,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:26,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-09-25 06:39:26,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:26,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-09-25 06:39:26,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:26,462 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:26,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:39:26,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 59 [2020-09-25 06:39:26,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 06:39:26,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:26,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:39:26,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:26,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:26,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:26,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:39:26,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:26,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:39:26,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:26,500 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:26,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:26,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:26,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:26,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:26,506 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 06:39:26,507 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1401526617] [2020-09-25 06:39:26,507 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:39:26,508 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 06:39:26,508 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030945675] [2020-09-25 06:39:26,509 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 06:39:26,509 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:39:26,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 06:39:26,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:39:26,510 INFO L87 Difference]: Start difference. First operand 239 states and 320 transitions. Second operand 3 states. [2020-09-25 06:39:26,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:39:26,527 INFO L93 Difference]: Finished difference Result 293 states and 396 transitions. [2020-09-25 06:39:26,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 06:39:26,528 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 63 [2020-09-25 06:39:26,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:39:26,530 INFO L225 Difference]: With dead ends: 293 [2020-09-25 06:39:26,530 INFO L226 Difference]: Without dead ends: 291 [2020-09-25 06:39:26,531 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 06:39:26,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2020-09-25 06:39:26,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 239. [2020-09-25 06:39:26,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 239 states. [2020-09-25 06:39:26,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 318 transitions. [2020-09-25 06:39:26,545 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 318 transitions. Word has length 63 [2020-09-25 06:39:26,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:39:26,546 INFO L479 AbstractCegarLoop]: Abstraction has 239 states and 318 transitions. [2020-09-25 06:39:26,546 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 06:39:26,546 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 318 transitions. [2020-09-25 06:39:26,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-09-25 06:39:26,548 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:39:26,548 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] [2020-09-25 06:39:26,548 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 06:39:26,548 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:39:26,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:39:26,549 INFO L82 PathProgramCache]: Analyzing trace with hash 1397120136, now seen corresponding path program 1 times [2020-09-25 06:39:26,549 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:39:26,550 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [192974928] [2020-09-25 06:39:26,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:39:26,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:26,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:26,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:26,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-09-25 06:39:26,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:26,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-09-25 06:39:26,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:26,632 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:26,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:39:26,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 59 [2020-09-25 06:39:26,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 06:39:26,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:26,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:39:26,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:26,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:26,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:26,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:39:26,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:26,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:39:26,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:26,672 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:26,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:26,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:26,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:26,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:26,679 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 06:39:26,680 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [192974928] [2020-09-25 06:39:26,680 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:39:26,680 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 06:39:26,681 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539058710] [2020-09-25 06:39:26,682 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 06:39:26,683 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:39:26,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 06:39:26,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:39:26,684 INFO L87 Difference]: Start difference. First operand 239 states and 318 transitions. Second operand 3 states. [2020-09-25 06:39:26,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:39:26,707 INFO L93 Difference]: Finished difference Result 631 states and 864 transitions. [2020-09-25 06:39:26,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 06:39:26,708 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 63 [2020-09-25 06:39:26,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:39:26,712 INFO L225 Difference]: With dead ends: 631 [2020-09-25 06:39:26,712 INFO L226 Difference]: Without dead ends: 429 [2020-09-25 06:39:26,715 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 06:39:26,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2020-09-25 06:39:26,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 427. [2020-09-25 06:39:26,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 427 states. [2020-09-25 06:39:26,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 574 transitions. [2020-09-25 06:39:26,748 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 574 transitions. Word has length 63 [2020-09-25 06:39:26,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:39:26,749 INFO L479 AbstractCegarLoop]: Abstraction has 427 states and 574 transitions. [2020-09-25 06:39:26,749 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 06:39:26,749 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 574 transitions. [2020-09-25 06:39:26,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-09-25 06:39:26,751 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:39:26,751 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] [2020-09-25 06:39:26,752 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 06:39:26,752 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:39:26,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:39:26,752 INFO L82 PathProgramCache]: Analyzing trace with hash 361296622, now seen corresponding path program 1 times [2020-09-25 06:39:26,753 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:39:26,753 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1478127873] [2020-09-25 06:39:26,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:39:26,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:26,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:26,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:26,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 06:39:26,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:26,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-25 06:39:26,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:26,816 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:26,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:39:26,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-09-25 06:39:26,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 06:39:26,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:26,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:39:26,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:26,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:26,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:26,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:39:26,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:26,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:39:26,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:26,846 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:26,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:26,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:26,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:26,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:39:26,851 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 06:39:26,851 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1478127873] [2020-09-25 06:39:26,852 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:39:26,852 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 06:39:26,852 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033683899] [2020-09-25 06:39:26,853 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 06:39:26,853 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:39:26,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 06:39:26,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:39:26,854 INFO L87 Difference]: Start difference. First operand 427 states and 574 transitions. Second operand 3 states. [2020-09-25 06:39:26,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:39:26,888 INFO L93 Difference]: Finished difference Result 1183 states and 1616 transitions. [2020-09-25 06:39:26,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 06:39:26,889 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 64 [2020-09-25 06:39:26,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:39:26,893 INFO L225 Difference]: With dead ends: 1183 [2020-09-25 06:39:26,894 INFO L226 Difference]: Without dead ends: 793 [2020-09-25 06:39:26,895 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 06:39:26,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 793 states. [2020-09-25 06:39:26,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 793 to 791. [2020-09-25 06:39:26,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 791 states. [2020-09-25 06:39:26,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 791 states to 791 states and 1062 transitions. [2020-09-25 06:39:26,922 INFO L78 Accepts]: Start accepts. Automaton has 791 states and 1062 transitions. Word has length 64 [2020-09-25 06:39:26,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:39:26,923 INFO L479 AbstractCegarLoop]: Abstraction has 791 states and 1062 transitions. [2020-09-25 06:39:26,923 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 06:39:26,923 INFO L276 IsEmpty]: Start isEmpty. Operand 791 states and 1062 transitions. [2020-09-25 06:39:26,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-09-25 06:39:26,926 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:39:26,926 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] [2020-09-25 06:39:26,926 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 06:39:26,927 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:39:26,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:39:26,927 INFO L82 PathProgramCache]: Analyzing trace with hash -1477714988, now seen corresponding path program 1 times [2020-09-25 06:39:26,927 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:39:26,928 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1013186087] [2020-09-25 06:39:26,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:39:26,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:26,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:26,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:26,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 06:39:26,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:26,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-09-25 06:39:26,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:26,995 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:26,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:39:26,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-09-25 06:39:26,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 06:39:26,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:27,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:39:27,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:27,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:27,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:27,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:39:27,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:27,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:39:27,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:27,040 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:27,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:27,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:27,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:27,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:27,047 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 06:39:27,048 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1013186087] [2020-09-25 06:39:27,048 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:39:27,048 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 06:39:27,049 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138036903] [2020-09-25 06:39:27,050 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 06:39:27,051 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:39:27,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 06:39:27,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:39:27,052 INFO L87 Difference]: Start difference. First operand 791 states and 1062 transitions. Second operand 3 states. [2020-09-25 06:39:27,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:39:27,079 INFO L93 Difference]: Finished difference Result 971 states and 1312 transitions. [2020-09-25 06:39:27,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 06:39:27,079 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 64 [2020-09-25 06:39:27,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:39:27,085 INFO L225 Difference]: With dead ends: 971 [2020-09-25 06:39:27,085 INFO L226 Difference]: Without dead ends: 969 [2020-09-25 06:39:27,086 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 06:39:27,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 969 states. [2020-09-25 06:39:27,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 969 to 791. [2020-09-25 06:39:27,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 791 states. [2020-09-25 06:39:27,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 791 states to 791 states and 1054 transitions. [2020-09-25 06:39:27,128 INFO L78 Accepts]: Start accepts. Automaton has 791 states and 1054 transitions. Word has length 64 [2020-09-25 06:39:27,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:39:27,129 INFO L479 AbstractCegarLoop]: Abstraction has 791 states and 1054 transitions. [2020-09-25 06:39:27,129 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 06:39:27,129 INFO L276 IsEmpty]: Start isEmpty. Operand 791 states and 1054 transitions. [2020-09-25 06:39:27,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-09-25 06:39:27,130 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:39:27,130 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] [2020-09-25 06:39:27,131 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 06:39:27,131 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:39:27,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:39:27,131 INFO L82 PathProgramCache]: Analyzing trace with hash 628943709, now seen corresponding path program 1 times [2020-09-25 06:39:27,132 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:39:27,132 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [702842919] [2020-09-25 06:39:27,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:39:27,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:27,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:27,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:27,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 06:39:27,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:27,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-25 06:39:27,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:27,192 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:27,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:39:27,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 61 [2020-09-25 06:39:27,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 06:39:27,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:39:27,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:39:27,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:27,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:27,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:27,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:39:27,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:27,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:39:27,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:27,213 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:27,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:27,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:27,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:27,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:39:27,217 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 06:39:27,218 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [702842919] [2020-09-25 06:39:27,218 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:39:27,218 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 06:39:27,219 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133862048] [2020-09-25 06:39:27,219 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 06:39:27,219 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:39:27,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 06:39:27,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:39:27,220 INFO L87 Difference]: Start difference. First operand 791 states and 1054 transitions. Second operand 3 states. [2020-09-25 06:39:27,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:39:27,241 INFO L93 Difference]: Finished difference Result 963 states and 1288 transitions. [2020-09-25 06:39:27,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 06:39:27,242 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 65 [2020-09-25 06:39:27,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:39:27,247 INFO L225 Difference]: With dead ends: 963 [2020-09-25 06:39:27,247 INFO L226 Difference]: Without dead ends: 961 [2020-09-25 06:39:27,248 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 06:39:27,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 961 states. [2020-09-25 06:39:27,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 961 to 791. [2020-09-25 06:39:27,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 791 states. [2020-09-25 06:39:27,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 791 states to 791 states and 1046 transitions. [2020-09-25 06:39:27,271 INFO L78 Accepts]: Start accepts. Automaton has 791 states and 1046 transitions. Word has length 65 [2020-09-25 06:39:27,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:39:27,272 INFO L479 AbstractCegarLoop]: Abstraction has 791 states and 1046 transitions. [2020-09-25 06:39:27,272 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 06:39:27,272 INFO L276 IsEmpty]: Start isEmpty. Operand 791 states and 1046 transitions. [2020-09-25 06:39:27,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-09-25 06:39:27,273 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:39:27,273 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] [2020-09-25 06:39:27,274 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 06:39:27,274 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:39:27,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:39:27,274 INFO L82 PathProgramCache]: Analyzing trace with hash -1684460868, now seen corresponding path program 1 times [2020-09-25 06:39:27,274 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:39:27,275 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [361364386] [2020-09-25 06:39:27,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:39:27,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:27,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:27,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:27,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 06:39:27,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:27,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-25 06:39:27,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:27,333 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:27,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:39:27,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 61 [2020-09-25 06:39:27,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 06:39:27,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:39:27,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:39:27,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:27,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:27,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:27,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:39:27,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:27,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:39:27,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:27,353 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:27,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:27,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:27,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:27,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:39:27,357 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 06:39:27,357 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [361364386] [2020-09-25 06:39:27,358 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:39:27,358 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 06:39:27,358 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607493200] [2020-09-25 06:39:27,359 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 06:39:27,359 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:39:27,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 06:39:27,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:39:27,359 INFO L87 Difference]: Start difference. First operand 791 states and 1046 transitions. Second operand 3 states. [2020-09-25 06:39:27,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:39:27,389 INFO L93 Difference]: Finished difference Result 2251 states and 3000 transitions. [2020-09-25 06:39:27,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 06:39:27,389 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 65 [2020-09-25 06:39:27,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:39:27,397 INFO L225 Difference]: With dead ends: 2251 [2020-09-25 06:39:27,397 INFO L226 Difference]: Without dead ends: 1497 [2020-09-25 06:39:27,399 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 06:39:27,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1497 states. [2020-09-25 06:39:27,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1497 to 1495. [2020-09-25 06:39:27,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1495 states. [2020-09-25 06:39:27,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1495 states to 1495 states and 1958 transitions. [2020-09-25 06:39:27,435 INFO L78 Accepts]: Start accepts. Automaton has 1495 states and 1958 transitions. Word has length 65 [2020-09-25 06:39:27,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:39:27,435 INFO L479 AbstractCegarLoop]: Abstraction has 1495 states and 1958 transitions. [2020-09-25 06:39:27,435 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 06:39:27,435 INFO L276 IsEmpty]: Start isEmpty. Operand 1495 states and 1958 transitions. [2020-09-25 06:39:27,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-09-25 06:39:27,437 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:39:27,437 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] [2020-09-25 06:39:27,438 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 06:39:27,438 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:39:27,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:39:27,438 INFO L82 PathProgramCache]: Analyzing trace with hash 1510854248, now seen corresponding path program 1 times [2020-09-25 06:39:27,438 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:39:27,439 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [569850311] [2020-09-25 06:39:27,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:39:27,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:27,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:27,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:27,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-09-25 06:39:27,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:27,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-25 06:39:27,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:27,501 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:27,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:39:27,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-09-25 06:39:27,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 06:39:27,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:39:27,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:39:27,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:27,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:27,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:27,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:39:27,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:27,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:39:27,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:27,524 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:27,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:27,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:27,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:27,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:39:27,528 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 06:39:27,528 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [569850311] [2020-09-25 06:39:27,528 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:39:27,529 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 06:39:27,529 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559953046] [2020-09-25 06:39:27,529 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 06:39:27,529 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:39:27,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 06:39:27,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:39:27,530 INFO L87 Difference]: Start difference. First operand 1495 states and 1958 transitions. Second operand 3 states. [2020-09-25 06:39:27,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:39:27,555 INFO L93 Difference]: Finished difference Result 1803 states and 2360 transitions. [2020-09-25 06:39:27,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 06:39:27,556 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 66 [2020-09-25 06:39:27,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:39:27,564 INFO L225 Difference]: With dead ends: 1803 [2020-09-25 06:39:27,564 INFO L226 Difference]: Without dead ends: 1801 [2020-09-25 06:39:27,565 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 06:39:27,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1801 states. [2020-09-25 06:39:27,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1801 to 1495. [2020-09-25 06:39:27,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1495 states. [2020-09-25 06:39:27,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1495 states to 1495 states and 1942 transitions. [2020-09-25 06:39:27,602 INFO L78 Accepts]: Start accepts. Automaton has 1495 states and 1942 transitions. Word has length 66 [2020-09-25 06:39:27,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:39:27,602 INFO L479 AbstractCegarLoop]: Abstraction has 1495 states and 1942 transitions. [2020-09-25 06:39:27,603 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 06:39:27,603 INFO L276 IsEmpty]: Start isEmpty. Operand 1495 states and 1942 transitions. [2020-09-25 06:39:27,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-09-25 06:39:27,604 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:39:27,604 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] [2020-09-25 06:39:27,605 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-25 06:39:27,605 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:39:27,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:39:27,605 INFO L82 PathProgramCache]: Analyzing trace with hash -678433246, now seen corresponding path program 1 times [2020-09-25 06:39:27,606 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:39:27,606 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1741628028] [2020-09-25 06:39:27,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:39:27,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:27,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:27,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:27,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-09-25 06:39:27,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:27,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-25 06:39:27,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:27,662 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:27,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:39:27,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-09-25 06:39:27,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 06:39:27,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:27,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:39:27,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:27,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:27,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:27,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:39:27,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:27,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:39:27,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:27,682 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:27,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:27,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:27,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:27,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:27,700 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 06:39:27,701 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1741628028] [2020-09-25 06:39:27,701 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:39:27,701 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 06:39:27,701 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172572645] [2020-09-25 06:39:27,702 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 06:39:27,702 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:39:27,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 06:39:27,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:39:27,702 INFO L87 Difference]: Start difference. First operand 1495 states and 1942 transitions. Second operand 3 states. [2020-09-25 06:39:27,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:39:27,750 INFO L93 Difference]: Finished difference Result 4315 states and 5624 transitions. [2020-09-25 06:39:27,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 06:39:27,751 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 66 [2020-09-25 06:39:27,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:39:27,765 INFO L225 Difference]: With dead ends: 4315 [2020-09-25 06:39:27,765 INFO L226 Difference]: Without dead ends: 2857 [2020-09-25 06:39:27,769 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 06:39:27,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2857 states. [2020-09-25 06:39:27,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2857 to 2855. [2020-09-25 06:39:27,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2855 states. [2020-09-25 06:39:27,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2855 states to 2855 states and 3654 transitions. [2020-09-25 06:39:27,842 INFO L78 Accepts]: Start accepts. Automaton has 2855 states and 3654 transitions. Word has length 66 [2020-09-25 06:39:27,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:39:27,843 INFO L479 AbstractCegarLoop]: Abstraction has 2855 states and 3654 transitions. [2020-09-25 06:39:27,843 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 06:39:27,843 INFO L276 IsEmpty]: Start isEmpty. Operand 2855 states and 3654 transitions. [2020-09-25 06:39:27,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-09-25 06:39:27,846 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:39:27,846 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] [2020-09-25 06:39:27,847 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-25 06:39:27,847 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:39:27,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:39:27,847 INFO L82 PathProgramCache]: Analyzing trace with hash -1214689743, now seen corresponding path program 1 times [2020-09-25 06:39:27,847 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:39:27,848 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1931830285] [2020-09-25 06:39:27,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:39:27,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:27,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:27,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:27,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-25 06:39:27,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:27,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-25 06:39:27,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:27,907 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:27,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:39:27,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 63 [2020-09-25 06:39:27,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 06:39:27,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:27,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:39:27,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:27,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:27,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:27,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:39:27,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:27,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:39:27,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:27,928 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:27,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:27,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:27,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:27,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:27,932 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 06:39:27,933 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1931830285] [2020-09-25 06:39:27,933 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:39:27,933 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 06:39:27,933 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816633110] [2020-09-25 06:39:27,934 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 06:39:27,934 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:39:27,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 06:39:27,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:39:27,935 INFO L87 Difference]: Start difference. First operand 2855 states and 3654 transitions. Second operand 3 states. [2020-09-25 06:39:27,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:39:27,973 INFO L93 Difference]: Finished difference Result 3403 states and 4328 transitions. [2020-09-25 06:39:27,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 06:39:27,974 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 67 [2020-09-25 06:39:27,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:39:27,989 INFO L225 Difference]: With dead ends: 3403 [2020-09-25 06:39:27,989 INFO L226 Difference]: Without dead ends: 3401 [2020-09-25 06:39:27,992 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 06:39:27,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3401 states. [2020-09-25 06:39:28,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3401 to 2855. [2020-09-25 06:39:28,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2855 states. [2020-09-25 06:39:28,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2855 states to 2855 states and 3622 transitions. [2020-09-25 06:39:28,076 INFO L78 Accepts]: Start accepts. Automaton has 2855 states and 3622 transitions. Word has length 67 [2020-09-25 06:39:28,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:39:28,077 INFO L479 AbstractCegarLoop]: Abstraction has 2855 states and 3622 transitions. [2020-09-25 06:39:28,077 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 06:39:28,077 INFO L276 IsEmpty]: Start isEmpty. Operand 2855 states and 3622 transitions. [2020-09-25 06:39:28,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-09-25 06:39:28,079 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:39:28,079 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] [2020-09-25 06:39:28,080 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-25 06:39:28,080 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:39:28,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:39:28,080 INFO L82 PathProgramCache]: Analyzing trace with hash 443652336, now seen corresponding path program 1 times [2020-09-25 06:39:28,080 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:39:28,081 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [45826283] [2020-09-25 06:39:28,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:39:28,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:28,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:28,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:28,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-25 06:39:28,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:28,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-25 06:39:28,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:28,136 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:28,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:39:28,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 63 [2020-09-25 06:39:28,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 06:39:28,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:39:28,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:39:28,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:28,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:28,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:28,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:39:28,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:28,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:39:28,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:28,153 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:28,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:28,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:28,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:28,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:39:28,157 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 06:39:28,157 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [45826283] [2020-09-25 06:39:28,157 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:39:28,158 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 06:39:28,158 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076468797] [2020-09-25 06:39:28,158 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 06:39:28,158 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:39:28,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 06:39:28,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:39:28,159 INFO L87 Difference]: Start difference. First operand 2855 states and 3622 transitions. Second operand 3 states. [2020-09-25 06:39:28,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:39:28,247 INFO L93 Difference]: Finished difference Result 8299 states and 10536 transitions. [2020-09-25 06:39:28,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 06:39:28,248 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 67 [2020-09-25 06:39:28,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:39:28,273 INFO L225 Difference]: With dead ends: 8299 [2020-09-25 06:39:28,274 INFO L226 Difference]: Without dead ends: 5481 [2020-09-25 06:39:28,279 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 06:39:28,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5481 states. [2020-09-25 06:39:28,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5481 to 5479. [2020-09-25 06:39:28,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5479 states. [2020-09-25 06:39:28,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5479 states to 5479 states and 6822 transitions. [2020-09-25 06:39:28,421 INFO L78 Accepts]: Start accepts. Automaton has 5479 states and 6822 transitions. Word has length 67 [2020-09-25 06:39:28,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:39:28,421 INFO L479 AbstractCegarLoop]: Abstraction has 5479 states and 6822 transitions. [2020-09-25 06:39:28,421 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 06:39:28,421 INFO L276 IsEmpty]: Start isEmpty. Operand 5479 states and 6822 transitions. [2020-09-25 06:39:28,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-09-25 06:39:28,425 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:39:28,425 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] [2020-09-25 06:39:28,425 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-25 06:39:28,425 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:39:28,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:39:28,426 INFO L82 PathProgramCache]: Analyzing trace with hash 192792828, now seen corresponding path program 1 times [2020-09-25 06:39:28,426 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:39:28,426 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [425133502] [2020-09-25 06:39:28,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:39:28,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:28,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:28,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:28,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-09-25 06:39:28,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:28,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-25 06:39:28,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:28,480 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:28,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:39:28,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 64 [2020-09-25 06:39:28,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 06:39:28,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:28,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:39:28,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:28,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:28,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:28,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:39:28,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:28,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:39:28,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:28,500 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:28,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:28,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:28,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:28,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:39:28,503 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 06:39:28,504 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [425133502] [2020-09-25 06:39:28,504 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:39:28,504 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 06:39:28,504 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342766597] [2020-09-25 06:39:28,505 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 06:39:28,505 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:39:28,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 06:39:28,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:39:28,506 INFO L87 Difference]: Start difference. First operand 5479 states and 6822 transitions. Second operand 3 states. [2020-09-25 06:39:28,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:39:28,560 INFO L93 Difference]: Finished difference Result 6443 states and 7912 transitions. [2020-09-25 06:39:28,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 06:39:28,561 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2020-09-25 06:39:28,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:39:28,588 INFO L225 Difference]: With dead ends: 6443 [2020-09-25 06:39:28,588 INFO L226 Difference]: Without dead ends: 6441 [2020-09-25 06:39:28,591 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 06:39:28,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6441 states. [2020-09-25 06:39:28,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6441 to 5479. [2020-09-25 06:39:28,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5479 states. [2020-09-25 06:39:28,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5479 states to 5479 states and 6758 transitions. [2020-09-25 06:39:28,728 INFO L78 Accepts]: Start accepts. Automaton has 5479 states and 6758 transitions. Word has length 68 [2020-09-25 06:39:28,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:39:28,729 INFO L479 AbstractCegarLoop]: Abstraction has 5479 states and 6758 transitions. [2020-09-25 06:39:28,729 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 06:39:28,729 INFO L276 IsEmpty]: Start isEmpty. Operand 5479 states and 6758 transitions. [2020-09-25 06:39:28,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-09-25 06:39:28,733 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:39:28,733 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] [2020-09-25 06:39:28,733 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-25 06:39:28,734 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:39:28,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:39:28,734 INFO L82 PathProgramCache]: Analyzing trace with hash 868567382, now seen corresponding path program 1 times [2020-09-25 06:39:28,734 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:39:28,735 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1082971083] [2020-09-25 06:39:28,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:39:28,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:28,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:28,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:28,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-09-25 06:39:28,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:28,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-25 06:39:28,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:28,798 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:28,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:39:28,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 64 [2020-09-25 06:39:28,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 06:39:28,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:28,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:39:28,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:28,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:28,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:28,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:39:28,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:28,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:39:28,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:28,826 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:28,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:28,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:28,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:28,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:28,835 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 06:39:28,835 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1082971083] [2020-09-25 06:39:28,836 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:39:28,836 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 06:39:28,836 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58669322] [2020-09-25 06:39:28,837 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 06:39:28,837 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:39:28,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 06:39:28,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:39:28,838 INFO L87 Difference]: Start difference. First operand 5479 states and 6758 transitions. Second operand 3 states. [2020-09-25 06:39:28,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:39:28,992 INFO L93 Difference]: Finished difference Result 15977 states and 19687 transitions. [2020-09-25 06:39:28,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 06:39:28,993 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2020-09-25 06:39:28,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:39:29,022 INFO L225 Difference]: With dead ends: 15977 [2020-09-25 06:39:29,022 INFO L226 Difference]: Without dead ends: 5479 [2020-09-25 06:39:29,047 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 06:39:29,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5479 states. [2020-09-25 06:39:29,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5479 to 5479. [2020-09-25 06:39:29,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5479 states. [2020-09-25 06:39:29,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5479 states to 5479 states and 6502 transitions. [2020-09-25 06:39:29,170 INFO L78 Accepts]: Start accepts. Automaton has 5479 states and 6502 transitions. Word has length 68 [2020-09-25 06:39:29,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:39:29,170 INFO L479 AbstractCegarLoop]: Abstraction has 5479 states and 6502 transitions. [2020-09-25 06:39:29,170 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 06:39:29,170 INFO L276 IsEmpty]: Start isEmpty. Operand 5479 states and 6502 transitions. [2020-09-25 06:39:29,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-09-25 06:39:29,180 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:39:29,180 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] [2020-09-25 06:39:29,181 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-09-25 06:39:29,181 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:39:29,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:39:29,181 INFO L82 PathProgramCache]: Analyzing trace with hash 875079941, now seen corresponding path program 1 times [2020-09-25 06:39:29,181 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:39:29,182 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [524475216] [2020-09-25 06:39:29,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:39:29,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:29,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:29,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:29,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-25 06:39:29,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:29,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-09-25 06:39:29,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:29,250 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:29,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:39:29,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 65 [2020-09-25 06:39:29,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 06:39:29,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:39:29,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:39:29,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:29,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:29,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:29,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:39:29,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:29,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:39:29,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:29,272 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:29,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:29,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:29,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:29,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:39:29,276 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 06:39:29,277 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [524475216] [2020-09-25 06:39:29,279 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:39:29,279 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 06:39:29,279 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900828159] [2020-09-25 06:39:29,280 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 06:39:29,280 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:39:29,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 06:39:29,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:39:29,280 INFO L87 Difference]: Start difference. First operand 5479 states and 6502 transitions. Second operand 3 states. [2020-09-25 06:39:29,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:39:29,321 INFO L93 Difference]: Finished difference Result 5479 states and 6502 transitions. [2020-09-25 06:39:29,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 06:39:29,322 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 69 [2020-09-25 06:39:29,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:39:29,322 INFO L225 Difference]: With dead ends: 5479 [2020-09-25 06:39:29,322 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 06:39:29,330 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 06:39:29,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 06:39:29,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 06:39:29,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 06:39:29,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 06:39:29,332 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 69 [2020-09-25 06:39:29,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:39:29,332 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 06:39:29,332 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 06:39:29,332 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 06:39:29,332 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 06:39:29,333 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-09-25 06:39:29,335 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 06:39:29,366 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-09-25 06:39:29,366 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-25 06:39:29,366 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-25 06:39:29,366 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-25 06:39:29,366 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-25 06:39:29,366 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-25 06:39:29,367 INFO L268 CegarLoopResult]: For program point L126(line 126) no Hoare annotation was computed. [2020-09-25 06:39:29,367 INFO L264 CegarLoopResult]: At program point L126-1(lines 5 135) the Hoare annotation is: false [2020-09-25 06:39:29,367 INFO L268 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-09-25 06:39:29,367 INFO L268 CegarLoopResult]: For program point L60-1(lines 33 130) no Hoare annotation was computed. [2020-09-25 06:39:29,368 INFO L268 CegarLoopResult]: For program point L27-1(line 27) no Hoare annotation was computed. [2020-09-25 06:39:29,368 INFO L268 CegarLoopResult]: For program point L27-2(line 27) no Hoare annotation was computed. [2020-09-25 06:39:29,369 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 4 135) no Hoare annotation was computed. [2020-09-25 06:39:29,369 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-09-25 06:39:29,369 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-09-25 06:39:29,369 INFO L268 CegarLoopResult]: For program point L19(line 19) no Hoare annotation was computed. [2020-09-25 06:39:29,369 INFO L268 CegarLoopResult]: For program point L77(line 77) no Hoare annotation was computed. [2020-09-25 06:39:29,369 INFO L268 CegarLoopResult]: For program point L110-1(lines 33 130) no Hoare annotation was computed. [2020-09-25 06:39:29,369 INFO L268 CegarLoopResult]: For program point L44(line 44) no Hoare annotation was computed. [2020-09-25 06:39:29,369 INFO L268 CegarLoopResult]: For program point L102(line 102) no Hoare annotation was computed. [2020-09-25 06:39:29,370 INFO L268 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed. [2020-09-25 06:39:29,372 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-09-25 06:39:29,372 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-09-25 06:39:29,372 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-09-25 06:39:29,372 INFO L268 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed. [2020-09-25 06:39:29,372 INFO L268 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-09-25 06:39:29,372 INFO L268 CegarLoopResult]: For program point L12-1(line 12) no Hoare annotation was computed. [2020-09-25 06:39:29,372 INFO L268 CegarLoopResult]: For program point L12-2(line 12) no Hoare annotation was computed. [2020-09-25 06:39:29,372 INFO L268 CegarLoopResult]: For program point L95-1(lines 33 130) no Hoare annotation was computed. [2020-09-25 06:39:29,373 INFO L268 CegarLoopResult]: For program point L120-1(lines 33 130) no Hoare annotation was computed. [2020-09-25 06:39:29,373 INFO L268 CegarLoopResult]: For program point L21(line 21) no Hoare annotation was computed. [2020-09-25 06:39:29,373 INFO L268 CegarLoopResult]: For program point L21-1(line 21) no Hoare annotation was computed. [2020-09-25 06:39:29,373 INFO L268 CegarLoopResult]: For program point L21-2(line 21) no Hoare annotation was computed. [2020-09-25 06:39:29,373 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-09-25 06:39:29,373 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-09-25 06:39:29,373 INFO L268 CegarLoopResult]: For program point L13(line 13) no Hoare annotation was computed. [2020-09-25 06:39:29,373 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 4 135) no Hoare annotation was computed. [2020-09-25 06:39:29,374 INFO L268 CegarLoopResult]: For program point L38(line 38) no Hoare annotation was computed. [2020-09-25 06:39:29,374 INFO L268 CegarLoopResult]: For program point L96(line 96) no Hoare annotation was computed. [2020-09-25 06:39:29,374 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 133) no Hoare annotation was computed. [2020-09-25 06:39:29,374 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 4 135) the Hoare annotation is: true [2020-09-25 06:39:29,374 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-09-25 06:39:29,374 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-09-25 06:39:29,374 INFO L268 CegarLoopResult]: For program point L80-1(lines 33 130) no Hoare annotation was computed. [2020-09-25 06:39:29,375 INFO L268 CegarLoopResult]: For program point L105-1(lines 33 130) no Hoare annotation was computed. [2020-09-25 06:39:29,375 INFO L268 CegarLoopResult]: For program point L72-1(lines 33 130) no Hoare annotation was computed. [2020-09-25 06:39:29,375 INFO L268 CegarLoopResult]: For program point L6(line 6) no Hoare annotation was computed. [2020-09-25 06:39:29,375 INFO L268 CegarLoopResult]: For program point L6-1(line 6) no Hoare annotation was computed. [2020-09-25 06:39:29,375 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-09-25 06:39:29,375 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-09-25 06:39:29,375 INFO L268 CegarLoopResult]: For program point L64-1(lines 33 130) no Hoare annotation was computed. [2020-09-25 06:39:29,376 INFO L268 CegarLoopResult]: For program point L122(line 122) no Hoare annotation was computed. [2020-09-25 06:39:29,376 INFO L268 CegarLoopResult]: For program point L56(lines 56 58) no Hoare annotation was computed. [2020-09-25 06:39:29,376 INFO L268 CegarLoopResult]: For program point L56-2(lines 33 130) no Hoare annotation was computed. [2020-09-25 06:39:29,376 INFO L268 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-09-25 06:39:29,376 INFO L268 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed. [2020-09-25 06:39:29,376 INFO L268 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2020-09-25 06:39:29,376 INFO L268 CegarLoopResult]: For program point L15-1(line 15) no Hoare annotation was computed. [2020-09-25 06:39:29,376 INFO L268 CegarLoopResult]: For program point L15-2(line 15) no Hoare annotation was computed. [2020-09-25 06:39:29,377 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-09-25 06:39:29,377 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-09-25 06:39:29,377 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-09-25 06:39:29,378 INFO L268 CegarLoopResult]: For program point L7(line 7) no Hoare annotation was computed. [2020-09-25 06:39:29,378 INFO L271 CegarLoopResult]: At program point L131(lines 5 135) the Hoare annotation is: true [2020-09-25 06:39:29,378 INFO L268 CegarLoopResult]: For program point L65(line 65) no Hoare annotation was computed. [2020-09-25 06:39:29,378 INFO L268 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-09-25 06:39:29,378 INFO L268 CegarLoopResult]: For program point L90-1(lines 33 130) no Hoare annotation was computed. [2020-09-25 06:39:29,379 INFO L268 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-09-25 06:39:29,379 INFO L268 CegarLoopResult]: For program point L24-1(line 24) no Hoare annotation was computed. [2020-09-25 06:39:29,381 INFO L268 CegarLoopResult]: For program point L24-2(line 24) no Hoare annotation was computed. [2020-09-25 06:39:29,382 INFO L268 CegarLoopResult]: For program point L115-1(lines 33 130) no Hoare annotation was computed. [2020-09-25 06:39:29,382 INFO L268 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-09-25 06:39:29,382 INFO L268 CegarLoopResult]: For program point L107(line 107) no Hoare annotation was computed. [2020-09-25 06:39:29,382 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-09-25 06:39:29,382 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-09-25 06:39:29,382 INFO L268 CegarLoopResult]: For program point L116(line 116) no Hoare annotation was computed. [2020-09-25 06:39:29,382 INFO L268 CegarLoopResult]: For program point L50(line 50) no Hoare annotation was computed. [2020-09-25 06:39:29,383 INFO L268 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-09-25 06:39:29,383 INFO L268 CegarLoopResult]: For program point L9(line 9) no Hoare annotation was computed. [2020-09-25 06:39:29,383 INFO L268 CegarLoopResult]: For program point L9-1(line 9) no Hoare annotation was computed. [2020-09-25 06:39:29,383 INFO L268 CegarLoopResult]: For program point L9-2(line 9) no Hoare annotation was computed. [2020-09-25 06:39:29,383 INFO L268 CegarLoopResult]: For program point L100-1(lines 33 130) no Hoare annotation was computed. [2020-09-25 06:39:29,383 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-09-25 06:39:29,383 INFO L268 CegarLoopResult]: For program point L34-1(line 34) no Hoare annotation was computed. [2020-09-25 06:39:29,383 INFO L268 CegarLoopResult]: For program point L34-2(line 34) no Hoare annotation was computed. [2020-09-25 06:39:29,384 INFO L268 CegarLoopResult]: For program point L92(line 92) no Hoare annotation was computed. [2020-09-25 06:39:29,384 INFO L271 CegarLoopResult]: At program point L125-1(lines 33 130) the Hoare annotation is: true [2020-09-25 06:39:29,384 INFO L268 CegarLoopResult]: For program point L117(line 117) no Hoare annotation was computed. [2020-09-25 06:39:29,384 INFO L268 CegarLoopResult]: For program point L84-1(lines 33 130) no Hoare annotation was computed. [2020-09-25 06:39:29,384 INFO L268 CegarLoopResult]: For program point L18(line 18) no Hoare annotation was computed. [2020-09-25 06:39:29,384 INFO L268 CegarLoopResult]: For program point L18-1(line 18) no Hoare annotation was computed. [2020-09-25 06:39:29,384 INFO L268 CegarLoopResult]: For program point L18-2(line 18) no Hoare annotation was computed. [2020-09-25 06:39:29,384 INFO L268 CegarLoopResult]: For program point L76-1(lines 33 130) no Hoare annotation was computed. [2020-09-25 06:39:29,384 INFO L268 CegarLoopResult]: For program point L10(line 10) no Hoare annotation was computed. [2020-09-25 06:39:29,385 INFO L268 CegarLoopResult]: For program point L134(line 134) no Hoare annotation was computed. [2020-09-25 06:39:29,385 INFO L268 CegarLoopResult]: For program point L101(line 101) no Hoare annotation was computed. [2020-09-25 06:39:29,385 INFO L268 CegarLoopResult]: For program point L35(lines 35 37) no Hoare annotation was computed. [2020-09-25 06:39:29,385 INFO L268 CegarLoopResult]: For program point L68-1(lines 33 130) no Hoare annotation was computed. [2020-09-25 06:39:29,400 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 06:39:29 BoogieIcfgContainer [2020-09-25 06:39:29,401 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 06:39:29,404 INFO L168 Benchmark]: Toolchain (without parser) took 5448.76 ms. Allocated memory was 146.3 MB in the beginning and 290.5 MB in the end (delta: 144.2 MB). Free memory was 101.2 MB in the beginning and 127.1 MB in the end (delta: -25.8 MB). Peak memory consumption was 118.4 MB. Max. memory is 7.1 GB. [2020-09-25 06:39:29,410 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 146.3 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 06:39:29,414 INFO L168 Benchmark]: CACSL2BoogieTranslator took 337.17 ms. Allocated memory is still 146.3 MB. Free memory was 100.6 MB in the beginning and 90.3 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. [2020-09-25 06:39:29,417 INFO L168 Benchmark]: Boogie Preprocessor took 140.27 ms. Allocated memory was 146.3 MB in the beginning and 203.9 MB in the end (delta: 57.7 MB). Free memory was 90.3 MB in the beginning and 181.9 MB in the end (delta: -91.6 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2020-09-25 06:39:29,417 INFO L168 Benchmark]: RCFGBuilder took 507.81 ms. Allocated memory is still 203.9 MB. Free memory was 181.9 MB in the beginning and 159.7 MB in the end (delta: 22.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. [2020-09-25 06:39:29,418 INFO L168 Benchmark]: TraceAbstraction took 4454.83 ms. Allocated memory was 203.9 MB in the beginning and 290.5 MB in the end (delta: 86.5 MB). Free memory was 159.1 MB in the beginning and 127.1 MB in the end (delta: 32.0 MB). Peak memory consumption was 118.5 MB. Max. memory is 7.1 GB. [2020-09-25 06:39:29,428 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 146.3 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 337.17 ms. Allocated memory is still 146.3 MB. Free memory was 100.6 MB in the beginning and 90.3 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 140.27 ms. Allocated memory was 146.3 MB in the beginning and 203.9 MB in the end (delta: 57.7 MB). Free memory was 90.3 MB in the beginning and 181.9 MB in the end (delta: -91.6 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 507.81 ms. Allocated memory is still 203.9 MB. Free memory was 181.9 MB in the beginning and 159.7 MB in the end (delta: 22.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4454.83 ms. Allocated memory was 203.9 MB in the beginning and 290.5 MB in the end (delta: 86.5 MB). Free memory was 159.1 MB in the beginning and 127.1 MB in the end (delta: 32.0 MB). Peak memory consumption was 118.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 133]: 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: 33]: 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, 98 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.3s, OverallIterations: 16, TraceHistogramMax: 1, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2345 SDtfs, 845 SDslu, 1664 SDs, 0 SdLazy, 79 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 80 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5479occurred in iteration=13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 16 MinimizatonAttempts, 2257 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 265 NumberOfFragments, 7 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 1040 NumberOfCodeBlocks, 1040 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 1024 ConstructedInterpolants, 0 QuantifiedInterpolants, 83040 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 16 InterpolantComputations, 16 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...