/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=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 20:42:32,246 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 20:42:32,249 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 20:42:32,276 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 20:42:32,277 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 20:42:32,278 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 20:42:32,280 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 20:42:32,282 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 20:42:32,284 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 20:42:32,285 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 20:42:32,286 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 20:42:32,287 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 20:42:32,288 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 20:42:32,289 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 20:42:32,290 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 20:42:32,292 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 20:42:32,293 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 20:42:32,294 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 20:42:32,296 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 20:42:32,298 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 20:42:32,300 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 20:42:32,301 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 20:42:32,303 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 20:42:32,304 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 20:42:32,307 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 20:42:32,307 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 20:42:32,307 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 20:42:32,309 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 20:42:32,309 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 20:42:32,310 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 20:42:32,311 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 20:42:32,312 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 20:42:32,313 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 20:42:32,316 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 20:42:32,317 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 20:42:32,318 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 20:42:32,319 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 20:42:32,320 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 20:42:32,320 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 20:42:32,321 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 20:42:32,322 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 20:42:32,323 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 [2020-09-24 20:42:32,383 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 20:42:32,384 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 20:42:32,387 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 20:42:32,388 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 20:42:32,388 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 20:42:32,388 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 20:42:32,388 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 20:42:32,388 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 20:42:32,389 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 20:42:32,389 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 20:42:32,389 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 20:42:32,389 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 20:42:32,389 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 20:42:32,390 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 20:42:32,394 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 20:42:32,394 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 20:42:32,394 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 20:42:32,395 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 20:42:32,395 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 20:42:32,395 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 20:42:32,395 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 20:42:32,395 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 20:42:32,396 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 20:42:32,396 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 20:42:32,396 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 20:42:32,396 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 20:42:32,396 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 20:42:32,398 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 20:42:32,399 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 20:42:32,399 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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;log-additional-information=true; [2020-09-24 20:42:32,917 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 20:42:32,938 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 20:42:32,945 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 20:42:32,947 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 20:42:32,949 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 20:42:32,950 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c [2020-09-24 20:42:33,040 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d804395c2/84a9dea99a2646e1bc20e1f1c28105c6/FLAGca87cedac [2020-09-24 20:42:33,541 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 20:42:33,542 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c [2020-09-24 20:42:33,552 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d804395c2/84a9dea99a2646e1bc20e1f1c28105c6/FLAGca87cedac [2020-09-24 20:42:33,889 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d804395c2/84a9dea99a2646e1bc20e1f1c28105c6 [2020-09-24 20:42:33,904 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 20:42:33,911 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 20:42:33,912 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 20:42:33,913 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 20:42:33,917 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 20:42:33,918 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:42:33" (1/1) ... [2020-09-24 20:42:33,923 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58419e08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:42:33, skipping insertion in model container [2020-09-24 20:42:33,923 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:42:33" (1/1) ... [2020-09-24 20:42:33,933 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 20:42:33,970 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 20:42:34,302 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:42:34,309 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 20:42:34,347 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:42:34,447 INFO L208 MainTranslator]: Completed translation [2020-09-24 20:42:34,447 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:42:34 WrapperNode [2020-09-24 20:42:34,448 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 20:42:34,449 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 20:42:34,449 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 20:42:34,449 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 20:42:34,463 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:42:34" (1/1) ... [2020-09-24 20:42:34,463 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:42:34" (1/1) ... [2020-09-24 20:42:34,470 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:42:34" (1/1) ... [2020-09-24 20:42:34,471 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:42:34" (1/1) ... [2020-09-24 20:42:34,478 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:42:34" (1/1) ... [2020-09-24 20:42:34,483 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:42:34" (1/1) ... [2020-09-24 20:42:34,485 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:42:34" (1/1) ... [2020-09-24 20:42:34,488 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 20:42:34,489 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 20:42:34,489 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 20:42:34,489 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 20:42:34,491 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:42:34" (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 [2020-09-24 20:42:34,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 20:42:34,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 20:42:34,567 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-24 20:42:34,567 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 20:42:34,568 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 20:42:34,568 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-24 20:42:34,568 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-24 20:42:34,568 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-24 20:42:34,568 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 20:42:34,569 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 20:42:34,569 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 20:42:34,569 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 20:42:35,089 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 20:42:35,089 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-24 20:42:35,105 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:42:35 BoogieIcfgContainer [2020-09-24 20:42:35,107 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 20:42:35,109 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 20:42:35,109 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 20:42:35,114 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 20:42:35,115 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 08:42:33" (1/3) ... [2020-09-24 20:42:35,116 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20563da9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:42:35, skipping insertion in model container [2020-09-24 20:42:35,116 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:42:34" (2/3) ... [2020-09-24 20:42:35,117 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20563da9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:42:35, skipping insertion in model container [2020-09-24 20:42:35,117 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:42:35" (3/3) ... [2020-09-24 20:42:35,120 INFO L109 eAbstractionObserver]: Analyzing ICFG SpamAssassin-loop.i.v+cfa-reducer.c [2020-09-24 20:42:35,132 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 20:42:35,147 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 16 error locations. [2020-09-24 20:42:35,171 INFO L251 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2020-09-24 20:42:35,221 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 20:42:35,222 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 20:42:35,224 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 20:42:35,224 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 20:42:35,224 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 20:42:35,225 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 20:42:35,225 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 20:42:35,225 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 20:42:35,258 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states. [2020-09-24 20:42:35,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-09-24 20:42:35,266 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:42:35,268 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] [2020-09-24 20:42:35,269 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:42:35,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:42:35,277 INFO L82 PathProgramCache]: Analyzing trace with hash -2057699390, now seen corresponding path program 1 times [2020-09-24 20:42:35,286 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:42:35,286 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2120901008] [2020-09-24 20:42:35,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:42:35,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:42:35,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:42:35,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:42:35,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:42:35,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 20:42:35,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 20:42:35,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 483 [2020-09-24 20:42:35,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:42:35,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 20:42:35,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-09-24 20:42:35,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 20:42:35,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 20:42:36,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:42:36,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:42:36,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:42:36,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:42:36,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:42:36,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:42:36,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 20:42:36,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:42:36,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:42:36,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:42:36,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:42:36,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:42:36,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:42:36,093 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2120901008] [2020-09-24 20:42:36,099 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:42:36,099 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 20:42:36,101 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873321176] [2020-09-24 20:42:36,108 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 20:42:36,109 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:42:36,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 20:42:36,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 20:42:36,132 INFO L87 Difference]: Start difference. First operand 178 states. Second operand 6 states. [2020-09-24 20:42:37,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:42:37,037 INFO L93 Difference]: Finished difference Result 435 states and 497 transitions. [2020-09-24 20:42:37,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 20:42:37,040 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2020-09-24 20:42:37,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:42:37,073 INFO L225 Difference]: With dead ends: 435 [2020-09-24 20:42:37,074 INFO L226 Difference]: Without dead ends: 264 [2020-09-24 20:42:37,085 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-09-24 20:42:37,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2020-09-24 20:42:37,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 154. [2020-09-24 20:42:37,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2020-09-24 20:42:37,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 158 transitions. [2020-09-24 20:42:37,150 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 158 transitions. Word has length 30 [2020-09-24 20:42:37,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:42:37,150 INFO L479 AbstractCegarLoop]: Abstraction has 154 states and 158 transitions. [2020-09-24 20:42:37,150 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 20:42:37,151 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 158 transitions. [2020-09-24 20:42:37,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-09-24 20:42:37,151 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:42:37,152 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] [2020-09-24 20:42:37,152 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 20:42:37,153 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:42:37,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:42:37,153 INFO L82 PathProgramCache]: Analyzing trace with hash 1575143415, now seen corresponding path program 1 times [2020-09-24 20:42:37,153 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:42:37,154 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1438468899] [2020-09-24 20:42:37,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:42:37,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:42:37,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:42:37,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:42:37,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 20:42:37,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:42:37,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-09-24 20:42:37,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:42:37,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 20:42:37,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 30 [2020-09-24 20:42:37,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 20:42:37,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:42:37,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:42:37,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:42:37,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:42:37,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:42:37,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:42:37,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:42:37,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:42:37,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:42:37,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:42:37,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:42:37,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:42:37,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:42:37,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:42:37,320 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1438468899] [2020-09-24 20:42:37,321 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:42:37,321 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 20:42:37,321 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420453147] [2020-09-24 20:42:37,323 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 20:42:37,323 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:42:37,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 20:42:37,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 20:42:37,324 INFO L87 Difference]: Start difference. First operand 154 states and 158 transitions. Second operand 6 states. [2020-09-24 20:42:37,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:42:37,780 INFO L93 Difference]: Finished difference Result 223 states and 230 transitions. [2020-09-24 20:42:37,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-24 20:42:37,781 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2020-09-24 20:42:37,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:42:37,785 INFO L225 Difference]: With dead ends: 223 [2020-09-24 20:42:37,786 INFO L226 Difference]: Without dead ends: 221 [2020-09-24 20:42:37,788 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-09-24 20:42:37,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2020-09-24 20:42:37,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 152. [2020-09-24 20:42:37,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2020-09-24 20:42:37,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 156 transitions. [2020-09-24 20:42:37,824 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 156 transitions. Word has length 30 [2020-09-24 20:42:37,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:42:37,825 INFO L479 AbstractCegarLoop]: Abstraction has 152 states and 156 transitions. [2020-09-24 20:42:37,825 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 20:42:37,826 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 156 transitions. [2020-09-24 20:42:37,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-24 20:42:37,827 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:42:37,827 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] [2020-09-24 20:42:37,827 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 20:42:37,828 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:42:37,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:42:37,829 INFO L82 PathProgramCache]: Analyzing trace with hash 949374873, now seen corresponding path program 1 times [2020-09-24 20:42:37,829 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:42:37,829 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1000089619] [2020-09-24 20:42:37,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:42:37,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:42:37,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:42:37,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:42:37,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-09-24 20:42:37,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:42:37,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-09-24 20:42:37,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:42:37,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 20:42:37,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-09-24 20:42:37,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-24 20:42:37,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:42:38,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:42:38,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:42:38,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:42:38,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:42:38,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:42:38,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:42:38,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:42:38,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:42:38,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:42:38,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:42:38,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:42:38,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:42:38,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:42:38,022 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1000089619] [2020-09-24 20:42:38,022 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:42:38,022 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 20:42:38,023 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611309509] [2020-09-24 20:42:38,023 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 20:42:38,023 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:42:38,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 20:42:38,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 20:42:38,024 INFO L87 Difference]: Start difference. First operand 152 states and 156 transitions. Second operand 6 states. [2020-09-24 20:42:38,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:42:38,432 INFO L93 Difference]: Finished difference Result 263 states and 271 transitions. [2020-09-24 20:42:38,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 20:42:38,433 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2020-09-24 20:42:38,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:42:38,435 INFO L225 Difference]: With dead ends: 263 [2020-09-24 20:42:38,435 INFO L226 Difference]: Without dead ends: 261 [2020-09-24 20:42:38,436 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-09-24 20:42:38,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2020-09-24 20:42:38,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 150. [2020-09-24 20:42:38,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2020-09-24 20:42:38,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 154 transitions. [2020-09-24 20:42:38,447 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 154 transitions. Word has length 35 [2020-09-24 20:42:38,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:42:38,448 INFO L479 AbstractCegarLoop]: Abstraction has 150 states and 154 transitions. [2020-09-24 20:42:38,448 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 20:42:38,448 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 154 transitions. [2020-09-24 20:42:38,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-24 20:42:38,450 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:42:38,450 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] [2020-09-24 20:42:38,450 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 20:42:38,450 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:42:38,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:42:38,451 INFO L82 PathProgramCache]: Analyzing trace with hash 386303974, now seen corresponding path program 1 times [2020-09-24 20:42:38,451 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:42:38,451 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1365124201] [2020-09-24 20:42:38,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:42:38,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:42:38,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:42:38,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:42:38,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-09-24 20:42:38,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:42:38,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-09-24 20:42:38,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:42:38,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 20:42:38,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-09-24 20:42:38,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-24 20:42:38,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:42:38,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:42:38,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:42:38,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:42:38,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:42:38,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:42:38,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:42:38,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:42:38,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:42:38,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:42:38,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:42:38,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:42:38,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:42:38,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:42:38,615 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1365124201] [2020-09-24 20:42:38,616 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:42:38,616 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 20:42:38,616 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353254693] [2020-09-24 20:42:38,616 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 20:42:38,617 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:42:38,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 20:42:38,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 20:42:38,618 INFO L87 Difference]: Start difference. First operand 150 states and 154 transitions. Second operand 6 states. [2020-09-24 20:42:38,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:42:38,867 INFO L93 Difference]: Finished difference Result 192 states and 199 transitions. [2020-09-24 20:42:38,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 20:42:38,867 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2020-09-24 20:42:38,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:42:38,869 INFO L225 Difference]: With dead ends: 192 [2020-09-24 20:42:38,869 INFO L226 Difference]: Without dead ends: 190 [2020-09-24 20:42:38,870 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-09-24 20:42:38,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2020-09-24 20:42:38,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 148. [2020-09-24 20:42:38,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2020-09-24 20:42:38,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 152 transitions. [2020-09-24 20:42:38,881 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 152 transitions. Word has length 35 [2020-09-24 20:42:38,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:42:38,881 INFO L479 AbstractCegarLoop]: Abstraction has 148 states and 152 transitions. [2020-09-24 20:42:38,881 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 20:42:38,881 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 152 transitions. [2020-09-24 20:42:38,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-09-24 20:42:38,883 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:42:38,883 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:42:38,883 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 20:42:38,884 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:42:38,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:42:38,884 INFO L82 PathProgramCache]: Analyzing trace with hash 1765112685, now seen corresponding path program 1 times [2020-09-24 20:42:38,884 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:42:38,885 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [862354696] [2020-09-24 20:42:38,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:42:38,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:42:38,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:42:39,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:42:39,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-24 20:42:39,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:42:39,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-09-24 20:42:39,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:42:39,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:42:39,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 20:42:39,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 20:42:39,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:42:39,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:42:39,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:42:39,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:42:39,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:42:39,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:42:39,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:42:39,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:42:39,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:42:39,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:42:39,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:42:39,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:42:39,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:42:39,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:42:39,081 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [862354696] [2020-09-24 20:42:39,082 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:42:39,082 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 20:42:39,082 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639056476] [2020-09-24 20:42:39,083 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 20:42:39,083 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:42:39,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 20:42:39,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-24 20:42:39,084 INFO L87 Difference]: Start difference. First operand 148 states and 152 transitions. Second operand 7 states. [2020-09-24 20:42:39,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:42:39,700 INFO L93 Difference]: Finished difference Result 262 states and 270 transitions. [2020-09-24 20:42:39,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 20:42:39,701 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 40 [2020-09-24 20:42:39,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:42:39,703 INFO L225 Difference]: With dead ends: 262 [2020-09-24 20:42:39,703 INFO L226 Difference]: Without dead ends: 260 [2020-09-24 20:42:39,704 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2020-09-24 20:42:39,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2020-09-24 20:42:39,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 146. [2020-09-24 20:42:39,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-09-24 20:42:39,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 150 transitions. [2020-09-24 20:42:39,713 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 150 transitions. Word has length 40 [2020-09-24 20:42:39,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:42:39,714 INFO L479 AbstractCegarLoop]: Abstraction has 146 states and 150 transitions. [2020-09-24 20:42:39,714 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 20:42:39,714 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 150 transitions. [2020-09-24 20:42:39,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-09-24 20:42:39,716 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:42:39,716 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] [2020-09-24 20:42:39,716 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 20:42:39,716 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:42:39,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:42:39,717 INFO L82 PathProgramCache]: Analyzing trace with hash -1900232348, now seen corresponding path program 1 times [2020-09-24 20:42:39,717 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:42:39,717 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1385088188] [2020-09-24 20:42:39,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:42:39,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:42:39,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:42:39,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:42:39,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-09-24 20:42:39,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:42:39,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-09-24 20:42:39,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:42:39,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 20:42:39,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-09-24 20:42:39,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 20:42:39,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:42:39,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:42:39,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:42:39,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:42:39,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:42:39,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:42:39,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:42:39,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:42:39,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:42:39,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:42:39,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:42:39,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:42:39,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:42:39,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:42:39,865 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1385088188] [2020-09-24 20:42:39,865 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:42:39,866 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 20:42:39,866 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307293844] [2020-09-24 20:42:39,866 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 20:42:39,866 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:42:39,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 20:42:39,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 20:42:39,867 INFO L87 Difference]: Start difference. First operand 146 states and 150 transitions. Second operand 6 states. [2020-09-24 20:42:40,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:42:40,259 INFO L93 Difference]: Finished difference Result 267 states and 275 transitions. [2020-09-24 20:42:40,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 20:42:40,260 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 45 [2020-09-24 20:42:40,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:42:40,263 INFO L225 Difference]: With dead ends: 267 [2020-09-24 20:42:40,264 INFO L226 Difference]: Without dead ends: 265 [2020-09-24 20:42:40,265 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-09-24 20:42:40,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2020-09-24 20:42:40,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 144. [2020-09-24 20:42:40,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2020-09-24 20:42:40,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 148 transitions. [2020-09-24 20:42:40,276 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 148 transitions. Word has length 45 [2020-09-24 20:42:40,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:42:40,278 INFO L479 AbstractCegarLoop]: Abstraction has 144 states and 148 transitions. [2020-09-24 20:42:40,278 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 20:42:40,278 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 148 transitions. [2020-09-24 20:42:40,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-09-24 20:42:40,284 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:42:40,289 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] [2020-09-24 20:42:40,290 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 20:42:40,290 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:42:40,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:42:40,290 INFO L82 PathProgramCache]: Analyzing trace with hash -1678067487, now seen corresponding path program 1 times [2020-09-24 20:42:40,290 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:42:40,292 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1326054313] [2020-09-24 20:42:40,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:42:40,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:42:40,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:42:40,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:42:40,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:42:40,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:42:40,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:42:40,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-09-24 20:42:40,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 20:42:40,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 441 [2020-09-24 20:42:40,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:42:40,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:42:40,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-09-24 20:42:40,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-24 20:42:40,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:42:40,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:42:40,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:42:40,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:42:40,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:42:40,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:42:40,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:42:40,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:42:40,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:42:40,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:42:40,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:42:41,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:42:41,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:42:41,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:42:41,007 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1326054313] [2020-09-24 20:42:41,008 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:42:41,008 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 20:42:41,008 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635110854] [2020-09-24 20:42:41,009 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 20:42:41,009 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:42:41,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 20:42:41,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-09-24 20:42:41,010 INFO L87 Difference]: Start difference. First operand 144 states and 148 transitions. Second operand 8 states. [2020-09-24 20:42:41,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:42:41,414 INFO L93 Difference]: Finished difference Result 194 states and 202 transitions. [2020-09-24 20:42:41,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-24 20:42:41,415 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 45 [2020-09-24 20:42:41,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:42:41,416 INFO L225 Difference]: With dead ends: 194 [2020-09-24 20:42:41,417 INFO L226 Difference]: Without dead ends: 192 [2020-09-24 20:42:41,417 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-09-24 20:42:41,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2020-09-24 20:42:41,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 142. [2020-09-24 20:42:41,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2020-09-24 20:42:41,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 146 transitions. [2020-09-24 20:42:41,425 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 146 transitions. Word has length 45 [2020-09-24 20:42:41,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:42:41,426 INFO L479 AbstractCegarLoop]: Abstraction has 142 states and 146 transitions. [2020-09-24 20:42:41,426 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 20:42:41,426 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 146 transitions. [2020-09-24 20:42:41,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-09-24 20:42:41,428 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:42:41,428 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] [2020-09-24 20:42:41,428 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 20:42:41,429 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:42:41,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:42:41,429 INFO L82 PathProgramCache]: Analyzing trace with hash 776869197, now seen corresponding path program 1 times [2020-09-24 20:42:41,429 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:42:41,430 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1765620167] [2020-09-24 20:42:41,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:42:41,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:42:41,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:42:41,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:42:41,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:42:41,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-09-24 20:42:41,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 20:42:41,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 217 [2020-09-24 20:42:41,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:42:41,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:42:41,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-24 20:42:41,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-24 20:42:41,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:42:41,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:42:41,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:42:41,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:42:41,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:42:41,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:42:41,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:42:41,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:42:41,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:42:41,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:42:41,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:42:41,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:42:41,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:42:41,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:42:41,773 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1765620167] [2020-09-24 20:42:41,773 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:42:41,774 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 20:42:41,774 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077743354] [2020-09-24 20:42:41,774 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 20:42:41,775 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:42:41,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 20:42:41,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 20:42:41,775 INFO L87 Difference]: Start difference. First operand 142 states and 146 transitions. Second operand 8 states. [2020-09-24 20:42:42,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:42:42,464 INFO L93 Difference]: Finished difference Result 233 states and 244 transitions. [2020-09-24 20:42:42,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 20:42:42,465 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 50 [2020-09-24 20:42:42,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:42:42,467 INFO L225 Difference]: With dead ends: 233 [2020-09-24 20:42:42,467 INFO L226 Difference]: Without dead ends: 231 [2020-09-24 20:42:42,468 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=94, Invalid=178, Unknown=0, NotChecked=0, Total=272 [2020-09-24 20:42:42,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2020-09-24 20:42:42,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 140. [2020-09-24 20:42:42,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-09-24 20:42:42,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 144 transitions. [2020-09-24 20:42:42,475 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 144 transitions. Word has length 50 [2020-09-24 20:42:42,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:42:42,476 INFO L479 AbstractCegarLoop]: Abstraction has 140 states and 144 transitions. [2020-09-24 20:42:42,476 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 20:42:42,476 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 144 transitions. [2020-09-24 20:42:42,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-09-24 20:42:42,477 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:42:42,478 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] [2020-09-24 20:42:42,478 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-24 20:42:42,478 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:42:42,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:42:42,479 INFO L82 PathProgramCache]: Analyzing trace with hash -828388948, now seen corresponding path program 1 times [2020-09-24 20:42:42,479 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:42:42,479 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1181003978] [2020-09-24 20:42:42,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:42:42,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:42:42,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:42:42,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:42:42,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-09-24 20:42:42,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:42:42,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-09-24 20:42:42,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:42:42,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:42:42,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 20:42:42,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-24 20:42:42,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:42:42,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:42:42,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:42:42,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:42:42,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:42:42,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:42:42,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:42:42,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 20:42:42,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:42:42,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:42:42,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:42:42,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:42:42,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:42:42,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:42:42,705 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1181003978] [2020-09-24 20:42:42,706 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:42:42,706 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 20:42:42,706 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309838070] [2020-09-24 20:42:42,707 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 20:42:42,707 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:42:42,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 20:42:42,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-24 20:42:42,708 INFO L87 Difference]: Start difference. First operand 140 states and 144 transitions. Second operand 7 states. [2020-09-24 20:42:43,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:42:43,123 INFO L93 Difference]: Finished difference Result 198 states and 206 transitions. [2020-09-24 20:42:43,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 20:42:43,124 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 55 [2020-09-24 20:42:43,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:42:43,125 INFO L225 Difference]: With dead ends: 198 [2020-09-24 20:42:43,126 INFO L226 Difference]: Without dead ends: 196 [2020-09-24 20:42:43,126 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2020-09-24 20:42:43,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2020-09-24 20:42:43,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 138. [2020-09-24 20:42:43,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2020-09-24 20:42:43,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 142 transitions. [2020-09-24 20:42:43,134 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 142 transitions. Word has length 55 [2020-09-24 20:42:43,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:42:43,135 INFO L479 AbstractCegarLoop]: Abstraction has 138 states and 142 transitions. [2020-09-24 20:42:43,135 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 20:42:43,135 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 142 transitions. [2020-09-24 20:42:43,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-09-24 20:42:43,136 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:42:43,136 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] [2020-09-24 20:42:43,137 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-24 20:42:43,137 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:42:43,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:42:43,137 INFO L82 PathProgramCache]: Analyzing trace with hash -2080692744, now seen corresponding path program 1 times [2020-09-24 20:42:43,138 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:42:43,138 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1928383461] [2020-09-24 20:42:43,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:42:43,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:42:43,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:42:43,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:42:43,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-09-24 20:42:43,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:42:43,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-09-24 20:42:43,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:42:43,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 20:42:43,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-09-24 20:42:43,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-09-24 20:42:43,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:42:43,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:42:43,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:42:43,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:42:43,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:42:43,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:42:43,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:42:43,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:42:43,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:42:43,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:42:43,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:42:43,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:42:43,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:42:43,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:42:43,347 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1928383461] [2020-09-24 20:42:43,347 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:42:43,348 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 20:42:43,348 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432261590] [2020-09-24 20:42:43,349 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 20:42:43,349 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:42:43,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 20:42:43,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 20:42:43,350 INFO L87 Difference]: Start difference. First operand 138 states and 142 transitions. Second operand 6 states. [2020-09-24 20:42:43,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:42:43,596 INFO L93 Difference]: Finished difference Result 203 states and 211 transitions. [2020-09-24 20:42:43,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 20:42:43,596 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 60 [2020-09-24 20:42:43,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:42:43,598 INFO L225 Difference]: With dead ends: 203 [2020-09-24 20:42:43,599 INFO L226 Difference]: Without dead ends: 201 [2020-09-24 20:42:43,601 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-09-24 20:42:43,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2020-09-24 20:42:43,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 136. [2020-09-24 20:42:43,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-09-24 20:42:43,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 140 transitions. [2020-09-24 20:42:43,611 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 140 transitions. Word has length 60 [2020-09-24 20:42:43,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:42:43,611 INFO L479 AbstractCegarLoop]: Abstraction has 136 states and 140 transitions. [2020-09-24 20:42:43,611 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 20:42:43,611 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 140 transitions. [2020-09-24 20:42:43,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-09-24 20:42:43,612 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:42:43,612 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] [2020-09-24 20:42:43,613 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-24 20:42:43,613 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:42:43,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:42:43,613 INFO L82 PathProgramCache]: Analyzing trace with hash 1555133305, now seen corresponding path program 1 times [2020-09-24 20:42:43,613 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:42:43,614 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1622720854] [2020-09-24 20:42:43,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:42:43,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:42:43,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:42:43,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:42:44,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:42:44,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-24 20:42:44,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 20:42:44,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 392 [2020-09-24 20:42:44,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:42:44,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 20:42:44,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-09-24 20:42:44,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-24 20:42:44,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:42:44,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:42:44,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:42:44,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:42:44,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:42:44,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:42:44,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:42:44,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:42:44,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:42:44,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:42:44,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:42:44,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:42:44,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:42:44,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:42:44,172 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1622720854] [2020-09-24 20:42:44,172 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:42:44,173 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 20:42:44,173 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924253949] [2020-09-24 20:42:44,173 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 20:42:44,174 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:42:44,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 20:42:44,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 20:42:44,175 INFO L87 Difference]: Start difference. First operand 136 states and 140 transitions. Second operand 9 states. [2020-09-24 20:42:45,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:42:45,191 INFO L93 Difference]: Finished difference Result 375 states and 390 transitions. [2020-09-24 20:42:45,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-24 20:42:45,191 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 69 [2020-09-24 20:42:45,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:42:45,193 INFO L225 Difference]: With dead ends: 375 [2020-09-24 20:42:45,193 INFO L226 Difference]: Without dead ends: 258 [2020-09-24 20:42:45,195 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=119, Invalid=261, Unknown=0, NotChecked=0, Total=380 [2020-09-24 20:42:45,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2020-09-24 20:42:45,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 158. [2020-09-24 20:42:45,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2020-09-24 20:42:45,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 162 transitions. [2020-09-24 20:42:45,205 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 162 transitions. Word has length 69 [2020-09-24 20:42:45,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:42:45,206 INFO L479 AbstractCegarLoop]: Abstraction has 158 states and 162 transitions. [2020-09-24 20:42:45,206 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 20:42:45,206 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 162 transitions. [2020-09-24 20:42:45,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-09-24 20:42:45,207 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:42:45,207 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:42:45,207 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-24 20:42:45,208 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:42:45,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:42:45,208 INFO L82 PathProgramCache]: Analyzing trace with hash -623432219, now seen corresponding path program 1 times [2020-09-24 20:42:45,208 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:42:45,209 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [334312650] [2020-09-24 20:42:45,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:42:45,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:42:45,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:42:45,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:42:45,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:42:46,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:42:46,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-24 20:42:46,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 20:42:46,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 989 [2020-09-24 20:42:46,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:42:46,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 20:42:46,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-24 20:42:46,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-24 20:42:46,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:42:46,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:42:46,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:42:46,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:42:46,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:42:46,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:42:46,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:42:46,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 20:42:46,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:42:46,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:42:46,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:42:46,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:42:46,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:42:46,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:42:46,388 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [334312650] [2020-09-24 20:42:46,388 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:42:46,388 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 20:42:46,388 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151722378] [2020-09-24 20:42:46,389 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 20:42:46,389 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:42:46,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 20:42:46,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 20:42:46,390 INFO L87 Difference]: Start difference. First operand 158 states and 162 transitions. Second operand 8 states. [2020-09-24 20:42:47,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:42:47,145 INFO L93 Difference]: Finished difference Result 297 states and 308 transitions. [2020-09-24 20:42:47,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 20:42:47,145 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 74 [2020-09-24 20:42:47,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:42:47,147 INFO L225 Difference]: With dead ends: 297 [2020-09-24 20:42:47,147 INFO L226 Difference]: Without dead ends: 295 [2020-09-24 20:42:47,148 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=94, Invalid=178, Unknown=0, NotChecked=0, Total=272 [2020-09-24 20:42:47,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2020-09-24 20:42:47,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 156. [2020-09-24 20:42:47,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2020-09-24 20:42:47,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 160 transitions. [2020-09-24 20:42:47,156 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 160 transitions. Word has length 74 [2020-09-24 20:42:47,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:42:47,157 INFO L479 AbstractCegarLoop]: Abstraction has 156 states and 160 transitions. [2020-09-24 20:42:47,157 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 20:42:47,157 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 160 transitions. [2020-09-24 20:42:47,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-09-24 20:42:47,158 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:42:47,158 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:42:47,159 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-24 20:42:47,159 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:42:47,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:42:47,159 INFO L82 PathProgramCache]: Analyzing trace with hash -1977531324, now seen corresponding path program 1 times [2020-09-24 20:42:47,160 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:42:47,160 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [782963374] [2020-09-24 20:42:47,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:42:47,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:42:47,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:42:47,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:42:47,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 20:42:47,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:42:47,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 177 [2020-09-24 20:42:47,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:42:47,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:42:47,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 20:42:47,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-24 20:42:47,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:42:47,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:42:47,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:42:47,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:42:47,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:42:47,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:42:47,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:42:47,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:42:47,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:42:47,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:42:47,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:42:47,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:42:47,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:42:47,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:42:47,445 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [782963374] [2020-09-24 20:42:47,445 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:42:47,445 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 20:42:47,446 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228204519] [2020-09-24 20:42:47,446 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 20:42:47,446 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:42:47,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 20:42:47,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-24 20:42:47,447 INFO L87 Difference]: Start difference. First operand 156 states and 160 transitions. Second operand 8 states. [2020-09-24 20:42:47,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:42:47,992 INFO L93 Difference]: Finished difference Result 271 states and 282 transitions. [2020-09-24 20:42:47,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 20:42:47,993 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 79 [2020-09-24 20:42:47,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:42:47,995 INFO L225 Difference]: With dead ends: 271 [2020-09-24 20:42:47,996 INFO L226 Difference]: Without dead ends: 269 [2020-09-24 20:42:47,996 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=82, Invalid=158, Unknown=0, NotChecked=0, Total=240 [2020-09-24 20:42:47,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2020-09-24 20:42:48,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 154. [2020-09-24 20:42:48,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2020-09-24 20:42:48,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 158 transitions. [2020-09-24 20:42:48,010 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 158 transitions. Word has length 79 [2020-09-24 20:42:48,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:42:48,010 INFO L479 AbstractCegarLoop]: Abstraction has 154 states and 158 transitions. [2020-09-24 20:42:48,010 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 20:42:48,011 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 158 transitions. [2020-09-24 20:42:48,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-09-24 20:42:48,012 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:42:48,012 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:42:48,012 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-24 20:42:48,012 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:42:48,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:42:48,013 INFO L82 PathProgramCache]: Analyzing trace with hash 108101264, now seen corresponding path program 1 times [2020-09-24 20:42:48,013 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:42:48,013 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1951157422] [2020-09-24 20:42:48,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:42:48,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:42:48,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:42:48,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:42:48,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:42:48,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-24 20:42:48,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 20:42:48,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 419 [2020-09-24 20:42:48,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:42:48,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 20:42:48,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-09-24 20:42:48,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 20:42:48,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:42:48,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:42:48,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:42:48,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:42:48,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:42:48,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:42:48,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:42:48,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:42:48,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:42:48,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:42:48,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:42:48,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:42:48,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:42:48,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:42:48,573 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1951157422] [2020-09-24 20:42:48,573 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:42:48,573 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 20:42:48,573 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539088787] [2020-09-24 20:42:48,574 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 20:42:48,574 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:42:48,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 20:42:48,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-09-24 20:42:48,575 INFO L87 Difference]: Start difference. First operand 154 states and 158 transitions. Second operand 8 states. [2020-09-24 20:42:48,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:42:48,917 INFO L93 Difference]: Finished difference Result 267 states and 275 transitions. [2020-09-24 20:42:48,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 20:42:48,918 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 84 [2020-09-24 20:42:48,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:42:48,920 INFO L225 Difference]: With dead ends: 267 [2020-09-24 20:42:48,920 INFO L226 Difference]: Without dead ends: 265 [2020-09-24 20:42:48,921 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2020-09-24 20:42:48,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2020-09-24 20:42:48,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 152. [2020-09-24 20:42:48,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2020-09-24 20:42:48,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 156 transitions. [2020-09-24 20:42:48,929 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 156 transitions. Word has length 84 [2020-09-24 20:42:48,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:42:48,929 INFO L479 AbstractCegarLoop]: Abstraction has 152 states and 156 transitions. [2020-09-24 20:42:48,930 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 20:42:48,930 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 156 transitions. [2020-09-24 20:42:48,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-09-24 20:42:48,931 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:42:48,931 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:42:48,931 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-24 20:42:48,931 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:42:48,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:42:48,932 INFO L82 PathProgramCache]: Analyzing trace with hash 274017809, now seen corresponding path program 1 times [2020-09-24 20:42:48,932 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:42:48,932 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [789915445] [2020-09-24 20:42:48,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:42:48,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:42:48,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:42:49,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:42:49,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-09-24 20:42:49,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:42:49,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 226 [2020-09-24 20:42:49,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:42:49,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 20:42:49,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 20:42:49,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 20:42:49,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:42:49,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:42:49,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:42:49,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:42:49,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:42:49,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:42:49,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:42:49,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:42:49,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:42:49,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:42:49,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:42:49,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:42:49,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:42:49,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:42:49,274 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [789915445] [2020-09-24 20:42:49,274 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:42:49,274 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 20:42:49,274 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833225631] [2020-09-24 20:42:49,275 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 20:42:49,275 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:42:49,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 20:42:49,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-09-24 20:42:49,275 INFO L87 Difference]: Start difference. First operand 152 states and 156 transitions. Second operand 9 states. [2020-09-24 20:42:49,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:42:49,962 INFO L93 Difference]: Finished difference Result 281 states and 292 transitions. [2020-09-24 20:42:49,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 20:42:49,963 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 93 [2020-09-24 20:42:49,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:42:49,965 INFO L225 Difference]: With dead ends: 281 [2020-09-24 20:42:49,966 INFO L226 Difference]: Without dead ends: 279 [2020-09-24 20:42:49,967 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=228, Unknown=0, NotChecked=0, Total=342 [2020-09-24 20:42:49,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2020-09-24 20:42:49,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 150. [2020-09-24 20:42:49,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2020-09-24 20:42:49,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 154 transitions. [2020-09-24 20:42:49,984 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 154 transitions. Word has length 93 [2020-09-24 20:42:49,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:42:49,985 INFO L479 AbstractCegarLoop]: Abstraction has 150 states and 154 transitions. [2020-09-24 20:42:49,985 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 20:42:49,985 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 154 transitions. [2020-09-24 20:42:49,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-09-24 20:42:49,987 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:42:49,987 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:42:49,987 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-09-24 20:42:49,989 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:42:49,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:42:49,990 INFO L82 PathProgramCache]: Analyzing trace with hash 1620264573, now seen corresponding path program 1 times [2020-09-24 20:42:49,990 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:42:49,990 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1412620595] [2020-09-24 20:42:49,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:42:50,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:42:50,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:42:50,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:42:50,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:42:51,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:42:51,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-09-24 20:42:51,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 20:42:51,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1304 [2020-09-24 20:42:51,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:42:51,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 20:42:51,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-09-24 20:42:51,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 20:42:51,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:42:51,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:42:51,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:42:51,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:42:51,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:42:51,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:42:51,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:42:51,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:42:51,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:42:51,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:42:51,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:42:51,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:42:51,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:42:51,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:42:51,537 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1412620595] [2020-09-24 20:42:51,540 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:42:51,540 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 20:42:51,540 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258835425] [2020-09-24 20:42:51,541 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 20:42:51,541 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:42:51,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 20:42:51,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-09-24 20:42:51,542 INFO L87 Difference]: Start difference. First operand 150 states and 154 transitions. Second operand 9 states. [2020-09-24 20:42:52,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:42:52,250 INFO L93 Difference]: Finished difference Result 449 states and 463 transitions. [2020-09-24 20:42:52,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 20:42:52,251 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 98 [2020-09-24 20:42:52,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:42:52,251 INFO L225 Difference]: With dead ends: 449 [2020-09-24 20:42:52,251 INFO L226 Difference]: Without dead ends: 0 [2020-09-24 20:42:52,257 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=133, Unknown=0, NotChecked=0, Total=210 [2020-09-24 20:42:52,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-24 20:42:52,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-24 20:42:52,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-24 20:42:52,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-24 20:42:52,259 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 98 [2020-09-24 20:42:52,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:42:52,259 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-24 20:42:52,259 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 20:42:52,259 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-24 20:42:52,260 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-24 20:42:52,260 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-09-24 20:42:52,263 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-24 20:42:53,268 WARN L193 SmtUtils]: Spent 983.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 105 [2020-09-24 20:42:53,785 WARN L193 SmtUtils]: Spent 512.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 105 [2020-09-24 20:42:54,138 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 17 [2020-09-24 20:42:54,438 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 41 [2020-09-24 20:42:54,576 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 20 [2020-09-24 20:42:54,593 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-24 20:42:54,593 INFO L268 CegarLoopResult]: For program point L10(line 10) no Hoare annotation was computed. [2020-09-24 20:42:54,593 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~__return_334~0 |old(~__return_334~0)|) (= ~__return_main~0 |old(~__return_main~0)|)) [2020-09-24 20:42:54,593 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-24 20:42:54,594 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-24 20:42:54,594 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-24 20:42:54,594 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-24 20:42:54,594 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-24 20:42:54,594 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 4 6) no Hoare annotation was computed. [2020-09-24 20:42:54,594 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-09-24 20:42:54,594 INFO L268 CegarLoopResult]: For program point L5-1(line 5) no Hoare annotation was computed. [2020-09-24 20:42:54,594 INFO L268 CegarLoopResult]: For program point L5-3(lines 4 6) no Hoare annotation was computed. [2020-09-24 20:42:54,595 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 4 6) no Hoare annotation was computed. [2020-09-24 20:42:54,595 INFO L268 CegarLoopResult]: For program point mainErr3ASSERT_VIOLATIONERROR_FUNCTION(line 86) no Hoare annotation was computed. [2020-09-24 20:42:54,595 INFO L268 CegarLoopResult]: For program point L250(line 250) no Hoare annotation was computed. [2020-09-24 20:42:54,595 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 11 311) no Hoare annotation was computed. [2020-09-24 20:42:54,595 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-09-24 20:42:54,595 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-09-24 20:42:54,595 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-09-24 20:42:54,596 INFO L268 CegarLoopResult]: For program point L234(line 234) no Hoare annotation was computed. [2020-09-24 20:42:54,596 INFO L268 CegarLoopResult]: For program point L201(lines 201 271) no Hoare annotation was computed. [2020-09-24 20:42:54,597 INFO L268 CegarLoopResult]: For program point L135(line 135) no Hoare annotation was computed. [2020-09-24 20:42:54,597 INFO L268 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed. [2020-09-24 20:42:54,597 INFO L268 CegarLoopResult]: For program point L36(lines 36 292) no Hoare annotation was computed. [2020-09-24 20:42:54,597 INFO L268 CegarLoopResult]: For program point L251(line 251) no Hoare annotation was computed. [2020-09-24 20:42:54,597 INFO L268 CegarLoopResult]: For program point L185(line 185) no Hoare annotation was computed. [2020-09-24 20:42:54,597 INFO L268 CegarLoopResult]: For program point L152(line 152) no Hoare annotation was computed. [2020-09-24 20:42:54,597 INFO L268 CegarLoopResult]: For program point L86(line 86) no Hoare annotation was computed. [2020-09-24 20:42:54,597 INFO L268 CegarLoopResult]: For program point L53(line 53) no Hoare annotation was computed. [2020-09-24 20:42:54,598 INFO L268 CegarLoopResult]: For program point L20(line 20) no Hoare annotation was computed. [2020-09-24 20:42:54,598 INFO L268 CegarLoopResult]: For program point mainErr14ASSERT_VIOLATIONERROR_FUNCTION(line 243) no Hoare annotation was computed. [2020-09-24 20:42:54,598 INFO L268 CegarLoopResult]: For program point L235(line 235) no Hoare annotation was computed. [2020-09-24 20:42:54,598 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-09-24 20:42:54,598 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-09-24 20:42:54,598 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-09-24 20:42:54,598 INFO L268 CegarLoopResult]: For program point L252(line 252) no Hoare annotation was computed. [2020-09-24 20:42:54,599 INFO L268 CegarLoopResult]: For program point L186(line 186) no Hoare annotation was computed. [2020-09-24 20:42:54,599 INFO L268 CegarLoopResult]: For program point L87(line 87) no Hoare annotation was computed. [2020-09-24 20:42:54,599 INFO L268 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-09-24 20:42:54,599 INFO L264 CegarLoopResult]: At program point L302(lines 23 310) the Hoare annotation is: (and (<= 0 main_~main__i~0) (= |old(~__return_334~0)| ~__return_334~0) (<= (+ main_~main__limit~0 4) main_~main__bufsize~0)) [2020-09-24 20:42:54,599 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 11 311) no Hoare annotation was computed. [2020-09-24 20:42:54,599 INFO L268 CegarLoopResult]: For program point L203(line 203) no Hoare annotation was computed. [2020-09-24 20:42:54,609 INFO L268 CegarLoopResult]: For program point mainErr13ASSERT_VIOLATIONERROR_FUNCTION(line 227) no Hoare annotation was computed. [2020-09-24 20:42:54,609 INFO L268 CegarLoopResult]: For program point L170(line 170) no Hoare annotation was computed. [2020-09-24 20:42:54,609 INFO L268 CegarLoopResult]: For program point L137(lines 137 281) no Hoare annotation was computed. [2020-09-24 20:42:54,610 INFO L268 CegarLoopResult]: For program point L104(line 104) no Hoare annotation was computed. [2020-09-24 20:42:54,610 INFO L268 CegarLoopResult]: For program point L71(line 71) no Hoare annotation was computed. [2020-09-24 20:42:54,610 INFO L268 CegarLoopResult]: For program point L253(lines 253 263) no Hoare annotation was computed. [2020-09-24 20:42:54,610 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-09-24 20:42:54,610 INFO L268 CegarLoopResult]: For program point L55(lines 55 284) no Hoare annotation was computed. [2020-09-24 20:42:54,610 INFO L268 CegarLoopResult]: For program point L237(line 237) no Hoare annotation was computed. [2020-09-24 20:42:54,610 INFO L268 CegarLoopResult]: For program point L204(line 204) no Hoare annotation was computed. [2020-09-24 20:42:54,611 INFO L268 CegarLoopResult]: For program point mainErr8ASSERT_VIOLATIONERROR_FUNCTION(line 163) no Hoare annotation was computed. [2020-09-24 20:42:54,611 INFO L268 CegarLoopResult]: For program point L171(line 171) no Hoare annotation was computed. [2020-09-24 20:42:54,612 INFO L268 CegarLoopResult]: For program point L105(line 105) no Hoare annotation was computed. [2020-09-24 20:42:54,612 INFO L268 CegarLoopResult]: For program point L72(lines 72 127) no Hoare annotation was computed. [2020-09-24 20:42:54,612 INFO L268 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-09-24 20:42:54,613 INFO L268 CegarLoopResult]: For program point L221(line 221) no Hoare annotation was computed. [2020-09-24 20:42:54,613 INFO L268 CegarLoopResult]: For program point L188(line 188) no Hoare annotation was computed. [2020-09-24 20:42:54,613 INFO L268 CegarLoopResult]: For program point L238(line 238) no Hoare annotation was computed. [2020-09-24 20:42:54,613 INFO L268 CegarLoopResult]: For program point mainErr15ASSERT_VIOLATIONERROR_FUNCTION(line 255) no Hoare annotation was computed. [2020-09-24 20:42:54,613 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-09-24 20:42:54,613 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-09-24 20:42:54,613 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-09-24 20:42:54,613 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-09-24 20:42:54,614 INFO L268 CegarLoopResult]: For program point L255(line 255) no Hoare annotation was computed. [2020-09-24 20:42:54,614 INFO L268 CegarLoopResult]: For program point L222(line 222) no Hoare annotation was computed. [2020-09-24 20:42:54,614 INFO L268 CegarLoopResult]: For program point L189(lines 189 273) no Hoare annotation was computed. [2020-09-24 20:42:54,614 INFO L268 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-09-24 20:42:54,614 INFO L268 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-09-24 20:42:54,614 INFO L268 CegarLoopResult]: For program point L24-1(line 24) no Hoare annotation was computed. [2020-09-24 20:42:54,614 INFO L268 CegarLoopResult]: For program point L24-2(line 24) no Hoare annotation was computed. [2020-09-24 20:42:54,614 INFO L268 CegarLoopResult]: For program point L239(line 239) no Hoare annotation was computed. [2020-09-24 20:42:54,615 INFO L268 CegarLoopResult]: For program point L173(lines 173 275) no Hoare annotation was computed. [2020-09-24 20:42:54,615 INFO L268 CegarLoopResult]: For program point L140(line 140) no Hoare annotation was computed. [2020-09-24 20:42:54,615 INFO L268 CegarLoopResult]: For program point L107(line 107) no Hoare annotation was computed. [2020-09-24 20:42:54,615 INFO L268 CegarLoopResult]: For program point L74(line 74) no Hoare annotation was computed. [2020-09-24 20:42:54,615 INFO L268 CegarLoopResult]: For program point mainErr10ASSERT_VIOLATIONERROR_FUNCTION(line 191) no Hoare annotation was computed. [2020-09-24 20:42:54,616 INFO L268 CegarLoopResult]: For program point L41(line 41) no Hoare annotation was computed. [2020-09-24 20:42:54,616 INFO L268 CegarLoopResult]: For program point L256(line 256) no Hoare annotation was computed. [2020-09-24 20:42:54,617 INFO L268 CegarLoopResult]: For program point L223(line 223) no Hoare annotation was computed. [2020-09-24 20:42:54,617 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-09-24 20:42:54,617 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-09-24 20:42:54,617 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-09-24 20:42:54,617 INFO L268 CegarLoopResult]: For program point L240(line 240) no Hoare annotation was computed. [2020-09-24 20:42:54,618 INFO L268 CegarLoopResult]: For program point mainErr9ASSERT_VIOLATIONERROR_FUNCTION(line 175) no Hoare annotation was computed. [2020-09-24 20:42:54,618 INFO L268 CegarLoopResult]: For program point L108(lines 108 121) no Hoare annotation was computed. [2020-09-24 20:42:54,618 INFO L268 CegarLoopResult]: For program point L75(line 75) no Hoare annotation was computed. [2020-09-24 20:42:54,618 INFO L268 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-09-24 20:42:54,618 INFO L268 CegarLoopResult]: For program point L224(line 224) no Hoare annotation was computed. [2020-09-24 20:42:54,618 INFO L268 CegarLoopResult]: For program point L191(line 191) no Hoare annotation was computed. [2020-09-24 20:42:54,618 INFO L268 CegarLoopResult]: For program point L158(line 158) no Hoare annotation was computed. [2020-09-24 20:42:54,619 INFO L268 CegarLoopResult]: For program point mainErr4ASSERT_VIOLATIONERROR_FUNCTION(line 98) no Hoare annotation was computed. [2020-09-24 20:42:54,619 INFO L268 CegarLoopResult]: For program point L92(line 92) no Hoare annotation was computed. [2020-09-24 20:42:54,619 INFO L268 CegarLoopResult]: For program point L26(line 26) no Hoare annotation was computed. [2020-09-24 20:42:54,620 INFO L268 CegarLoopResult]: For program point L307(line 307) no Hoare annotation was computed. [2020-09-24 20:42:54,620 INFO L268 CegarLoopResult]: For program point L241(lines 241 265) no Hoare annotation was computed. [2020-09-24 20:42:54,620 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-09-24 20:42:54,620 INFO L268 CegarLoopResult]: For program point L43(lines 43 286) no Hoare annotation was computed. [2020-09-24 20:42:54,621 INFO L264 CegarLoopResult]: At program point L291(lines 36 292) the Hoare annotation is: (and (<= 0 main_~main__i~0) (< main_~main__i~0 main_~main__len~0) (<= 0 main_~main__j~0) (<= (+ main_~main__j~0 5) main_~main__bufsize~0) (<= (+ main_~main__limit~0 4) main_~main__bufsize~0) (= |old(~__return_334~0)| ~__return_334~0)) [2020-09-24 20:42:54,621 INFO L268 CegarLoopResult]: For program point L225(lines 225 267) no Hoare annotation was computed. [2020-09-24 20:42:54,621 INFO L268 CegarLoopResult]: For program point L192(line 192) no Hoare annotation was computed. [2020-09-24 20:42:54,621 INFO L268 CegarLoopResult]: For program point L159(line 159) no Hoare annotation was computed. [2020-09-24 20:42:54,621 INFO L268 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2020-09-24 20:42:54,621 INFO L268 CegarLoopResult]: For program point L308(line 308) no Hoare annotation was computed. [2020-09-24 20:42:54,621 INFO L268 CegarLoopResult]: For program point L209(line 209) no Hoare annotation was computed. [2020-09-24 20:42:54,621 INFO L268 CegarLoopResult]: For program point L176(line 176) no Hoare annotation was computed. [2020-09-24 20:42:54,621 INFO L268 CegarLoopResult]: For program point L110(line 110) no Hoare annotation was computed. [2020-09-24 20:42:54,622 INFO L268 CegarLoopResult]: For program point mainErr11ASSERT_VIOLATIONERROR_FUNCTION(line 203) no Hoare annotation was computed. [2020-09-24 20:42:54,622 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-09-24 20:42:54,622 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-09-24 20:42:54,622 INFO L268 CegarLoopResult]: For program point mainErr6ASSERT_VIOLATIONERROR_FUNCTION(line 139) no Hoare annotation was computed. [2020-09-24 20:42:54,622 INFO L268 CegarLoopResult]: For program point L243(line 243) no Hoare annotation was computed. [2020-09-24 20:42:54,622 INFO L268 CegarLoopResult]: For program point L210(line 210) no Hoare annotation was computed. [2020-09-24 20:42:54,622 INFO L268 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed. [2020-09-24 20:42:54,622 INFO L268 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-09-24 20:42:54,623 INFO L268 CegarLoopResult]: For program point L260(line 260) no Hoare annotation was computed. [2020-09-24 20:42:54,623 INFO L268 CegarLoopResult]: For program point L227(line 227) no Hoare annotation was computed. [2020-09-24 20:42:54,623 INFO L268 CegarLoopResult]: For program point L161(lines 161 277) no Hoare annotation was computed. [2020-09-24 20:42:54,623 INFO L268 CegarLoopResult]: For program point L95(line 95) no Hoare annotation was computed. [2020-09-24 20:42:54,624 INFO L268 CegarLoopResult]: For program point L62(line 62) no Hoare annotation was computed. [2020-09-24 20:42:54,624 INFO L268 CegarLoopResult]: For program point mainErr5ASSERT_VIOLATIONERROR_FUNCTION(line 110) no Hoare annotation was computed. [2020-09-24 20:42:54,624 INFO L268 CegarLoopResult]: For program point L244(line 244) no Hoare annotation was computed. [2020-09-24 20:42:54,624 INFO L268 CegarLoopResult]: For program point L211(line 211) no Hoare annotation was computed. [2020-09-24 20:42:54,624 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-09-24 20:42:54,624 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-09-24 20:42:54,624 INFO L268 CegarLoopResult]: For program point L261(line 261) no Hoare annotation was computed. [2020-09-24 20:42:54,624 INFO L268 CegarLoopResult]: For program point L228(line 228) no Hoare annotation was computed. [2020-09-24 20:42:54,624 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 45) no Hoare annotation was computed. [2020-09-24 20:42:54,625 INFO L268 CegarLoopResult]: For program point L96(lines 96 123) no Hoare annotation was computed. [2020-09-24 20:42:54,625 INFO L268 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-09-24 20:42:54,625 INFO L268 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-09-24 20:42:54,625 INFO L268 CegarLoopResult]: For program point L63-1(line 63) no Hoare annotation was computed. [2020-09-24 20:42:54,625 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 11 311) the Hoare annotation is: (= |old(~__return_334~0)| ~__return_334~0) [2020-09-24 20:42:54,625 INFO L268 CegarLoopResult]: For program point L63-2(line 63) no Hoare annotation was computed. [2020-09-24 20:42:54,625 INFO L268 CegarLoopResult]: For program point L212(line 212) no Hoare annotation was computed. [2020-09-24 20:42:54,625 INFO L268 CegarLoopResult]: For program point L146(line 146) no Hoare annotation was computed. [2020-09-24 20:42:54,626 INFO L268 CegarLoopResult]: For program point L80(line 80) no Hoare annotation was computed. [2020-09-24 20:42:54,626 INFO L268 CegarLoopResult]: For program point L14(line 14) no Hoare annotation was computed. [2020-09-24 20:42:54,626 INFO L264 CegarLoopResult]: At program point L262(lines 29 304) the Hoare annotation is: (let ((.cse1 (<= 0 main_~main__j~0)) (.cse3 (<= (+ main_~main__limit~0 4) main_~main__bufsize~0)) (.cse0 (<= 0 main_~main__i~0)) (.cse2 (= |old(~__return_334~0)| ~__return_334~0))) (or (and .cse0 .cse1 .cse2 (<= (+ main_~main__i~0 1) main_~main__len~0) .cse3) (and (<= 1 main_~main__j~0) (let ((.cse5 (<= (+ main_~main__j~0 4) main_~main__bufsize~0))) (let ((.cse4 (or (and .cse0 .cse5 .cse2) (and .cse0 (<= 1 main_~__tmp_13~0) .cse2 (<= 1 main_~__VERIFIER_assert__cond~12))))) (or (and .cse4 .cse1 .cse5 .cse3) (and .cse4 (<= 1 main_~__VERIFIER_assert__cond~14) .cse1 (<= 1 main_~__tmp_15~0) .cse3))))))) [2020-09-24 20:42:54,626 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-09-24 20:42:54,626 INFO L268 CegarLoopResult]: For program point L64(lines 64 283) no Hoare annotation was computed. [2020-09-24 20:42:54,626 INFO L268 CegarLoopResult]: For program point mainErr7ASSERT_VIOLATIONERROR_FUNCTION(line 151) no Hoare annotation was computed. [2020-09-24 20:42:54,626 INFO L268 CegarLoopResult]: For program point L213(lines 213 269) no Hoare annotation was computed. [2020-09-24 20:42:54,627 INFO L268 CegarLoopResult]: For program point L180(line 180) no Hoare annotation was computed. [2020-09-24 20:42:54,627 INFO L268 CegarLoopResult]: For program point L147(line 147) no Hoare annotation was computed. [2020-09-24 20:42:54,627 INFO L268 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-09-24 20:42:54,627 INFO L268 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2020-09-24 20:42:54,627 INFO L268 CegarLoopResult]: For program point L197(line 197) no Hoare annotation was computed. [2020-09-24 20:42:54,627 INFO L268 CegarLoopResult]: For program point L164(line 164) no Hoare annotation was computed. [2020-09-24 20:42:54,627 INFO L268 CegarLoopResult]: For program point L98(line 98) no Hoare annotation was computed. [2020-09-24 20:42:54,627 INFO L268 CegarLoopResult]: For program point mainErr2ASSERT_VIOLATIONERROR_FUNCTION(line 74) no Hoare annotation was computed. [2020-09-24 20:42:54,627 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-09-24 20:42:54,628 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-09-24 20:42:54,628 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-09-24 20:42:54,628 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-09-24 20:42:54,628 INFO L268 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-09-24 20:42:54,628 INFO L268 CegarLoopResult]: For program point L198(line 198) no Hoare annotation was computed. [2020-09-24 20:42:54,628 INFO L268 CegarLoopResult]: For program point L99(line 99) no Hoare annotation was computed. [2020-09-24 20:42:54,628 INFO L268 CegarLoopResult]: For program point mainErr1ASSERT_VIOLATIONERROR_FUNCTION(line 57) no Hoare annotation was computed. [2020-09-24 20:42:54,628 INFO L268 CegarLoopResult]: For program point L215(line 215) no Hoare annotation was computed. [2020-09-24 20:42:54,628 INFO L268 CegarLoopResult]: For program point L182(line 182) no Hoare annotation was computed. [2020-09-24 20:42:54,629 INFO L268 CegarLoopResult]: For program point L149(lines 149 279) no Hoare annotation was computed. [2020-09-24 20:42:54,629 INFO L268 CegarLoopResult]: For program point L116(line 116) no Hoare annotation was computed. [2020-09-24 20:42:54,629 INFO L268 CegarLoopResult]: For program point L83(line 83) no Hoare annotation was computed. [2020-09-24 20:42:54,629 INFO L268 CegarLoopResult]: For program point L17(line 17) no Hoare annotation was computed. [2020-09-24 20:42:54,629 INFO L268 CegarLoopResult]: For program point L17-1(line 17) no Hoare annotation was computed. [2020-09-24 20:42:54,629 INFO L268 CegarLoopResult]: For program point L17-2(line 17) no Hoare annotation was computed. [2020-09-24 20:42:54,629 INFO L268 CegarLoopResult]: For program point L232(line 232) no Hoare annotation was computed. [2020-09-24 20:42:54,629 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-09-24 20:42:54,629 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-09-24 20:42:54,630 INFO L268 CegarLoopResult]: For program point L34(lines 34 298) no Hoare annotation was computed. [2020-09-24 20:42:54,630 INFO L268 CegarLoopResult]: For program point L249(line 249) no Hoare annotation was computed. [2020-09-24 20:42:54,630 INFO L268 CegarLoopResult]: For program point L216(line 216) no Hoare annotation was computed. [2020-09-24 20:42:54,630 INFO L268 CegarLoopResult]: For program point L183(line 183) no Hoare annotation was computed. [2020-09-24 20:42:54,630 INFO L268 CegarLoopResult]: For program point L117(line 117) no Hoare annotation was computed. [2020-09-24 20:42:54,630 INFO L268 CegarLoopResult]: For program point L84(lines 84 125) no Hoare annotation was computed. [2020-09-24 20:42:54,630 INFO L268 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-09-24 20:42:54,630 INFO L268 CegarLoopResult]: For program point L18(lines 18 310) no Hoare annotation was computed. [2020-09-24 20:42:54,630 INFO L268 CegarLoopResult]: For program point mainErr12ASSERT_VIOLATIONERROR_FUNCTION(line 215) no Hoare annotation was computed. [2020-09-24 20:42:54,631 INFO L268 CegarLoopResult]: For program point L233(line 233) no Hoare annotation was computed. [2020-09-24 20:42:54,631 INFO L268 CegarLoopResult]: For program point L200(line 200) no Hoare annotation was computed. [2020-09-24 20:42:54,631 INFO L268 CegarLoopResult]: For program point L134(line 134) no Hoare annotation was computed. [2020-09-24 20:42:54,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 08:42:54 BoogieIcfgContainer [2020-09-24 20:42:54,679 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 20:42:54,683 INFO L168 Benchmark]: Toolchain (without parser) took 20774.97 ms. Allocated memory was 142.6 MB in the beginning and 367.5 MB in the end (delta: 224.9 MB). Free memory was 105.8 MB in the beginning and 331.5 MB in the end (delta: -225.8 MB). Peak memory consumption was 220.5 MB. Max. memory is 7.1 GB. [2020-09-24 20:42:54,683 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 142.6 MB. Free memory was 124.1 MB in the beginning and 123.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-24 20:42:54,686 INFO L168 Benchmark]: CACSL2BoogieTranslator took 535.92 ms. Allocated memory was 142.6 MB in the beginning and 203.9 MB in the end (delta: 61.3 MB). Free memory was 105.1 MB in the beginning and 182.8 MB in the end (delta: -77.7 MB). Peak memory consumption was 24.0 MB. Max. memory is 7.1 GB. [2020-09-24 20:42:54,687 INFO L168 Benchmark]: Boogie Preprocessor took 39.90 ms. Allocated memory is still 203.9 MB. Free memory was 182.8 MB in the beginning and 180.6 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2020-09-24 20:42:54,688 INFO L168 Benchmark]: RCFGBuilder took 618.64 ms. Allocated memory is still 203.9 MB. Free memory was 180.6 MB in the beginning and 148.8 MB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2020-09-24 20:42:54,693 INFO L168 Benchmark]: TraceAbstraction took 19570.62 ms. Allocated memory was 203.9 MB in the beginning and 367.5 MB in the end (delta: 163.6 MB). Free memory was 148.8 MB in the beginning and 331.5 MB in the end (delta: -182.7 MB). Peak memory consumption was 202.2 MB. Max. memory is 7.1 GB. [2020-09-24 20:42:54,698 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 142.6 MB. Free memory was 124.1 MB in the beginning and 123.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 535.92 ms. Allocated memory was 142.6 MB in the beginning and 203.9 MB in the end (delta: 61.3 MB). Free memory was 105.1 MB in the beginning and 182.8 MB in the end (delta: -77.7 MB). Peak memory consumption was 24.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 39.90 ms. Allocated memory is still 203.9 MB. Free memory was 182.8 MB in the beginning and 180.6 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 618.64 ms. Allocated memory is still 203.9 MB. Free memory was 180.6 MB in the beginning and 148.8 MB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 19570.62 ms. Allocated memory was 203.9 MB in the beginning and 367.5 MB in the end (delta: 163.6 MB). Free memory was 148.8 MB in the beginning and 331.5 MB in the end (delta: -182.7 MB). Peak memory consumption was 202.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 45]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 255]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 151]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 163]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 227]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 175]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 191]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 243]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 215]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 98]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 203]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 74]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 139]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 110]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 86]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 57]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 16 specifications checked. All of them hold - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: ((((0 <= main__i && 0 <= main__j) && \old(__return_334) == __return_334) && main__i + 1 <= main__len) && main__limit + 4 <= main__bufsize) || (1 <= main__j && (((((((0 <= main__i && main__j + 4 <= main__bufsize) && \old(__return_334) == __return_334) || (((0 <= main__i && 1 <= __tmp_13) && \old(__return_334) == __return_334) && 1 <= __VERIFIER_assert__cond)) && 0 <= main__j) && main__j + 4 <= main__bufsize) && main__limit + 4 <= main__bufsize) || (((((((0 <= main__i && main__j + 4 <= main__bufsize) && \old(__return_334) == __return_334) || (((0 <= main__i && 1 <= __tmp_13) && \old(__return_334) == __return_334) && 1 <= __VERIFIER_assert__cond)) && 1 <= __VERIFIER_assert__cond) && 0 <= main__j) && 1 <= __tmp_15) && main__limit + 4 <= main__bufsize))) - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: ((((0 <= main__i && main__i < main__len) && 0 <= main__j) && main__j + 5 <= main__bufsize) && main__limit + 4 <= main__bufsize) && \old(__return_334) == __return_334 - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: (0 <= main__i && \old(__return_334) == __return_334) && main__limit + 4 <= main__bufsize - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 183 locations, 16 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 17.0s, OverallIterations: 16, TraceHistogramMax: 1, AutomataDifference: 8.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3288 SDtfs, 9119 SDslu, 432 SDs, 0 SdLazy, 5921 SolverSat, 255 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 260 GetRequests, 71 SyntacticMatches, 3 SemanticMatches, 186 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 189 ImplicationChecksByTransitivity, 2.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=178occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 16 MinimizatonAttempts, 1427 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 26 NumberOfFragments, 154 HoareAnnotationTreeSize, 7 FomulaSimplifications, 829247442 FormulaSimplificationTreeSizeReduction, 1.8s HoareSimplificationTime, 7 FomulaSimplificationsInter, 25709 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 7.1s InterpolantComputationTime, 922 NumberOfCodeBlocks, 922 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 906 ConstructedInterpolants, 0 QuantifiedInterpolants, 174372 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...