/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.1 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 10:17:15,407 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 10:17:15,411 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 10:17:15,444 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 10:17:15,444 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 10:17:15,456 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 10:17:15,459 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 10:17:15,463 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 10:17:15,467 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 10:17:15,471 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 10:17:15,472 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 10:17:15,474 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 10:17:15,474 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 10:17:15,477 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 10:17:15,482 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 10:17:15,484 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 10:17:15,486 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 10:17:15,488 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 10:17:15,492 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 10:17:15,499 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 10:17:15,503 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 10:17:15,504 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 10:17:15,505 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 10:17:15,506 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 10:17:15,511 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 10:17:15,512 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 10:17:15,512 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 10:17:15,515 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 10:17:15,516 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 10:17:15,518 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 10:17:15,519 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 10:17:15,520 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 10:17:15,521 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 10:17:15,522 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 10:17:15,523 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 10:17:15,524 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 10:17:15,525 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 10:17:15,525 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 10:17:15,525 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 10:17:15,526 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 10:17:15,528 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 10:17:15,529 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 10:17:15,582 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 10:17:15,582 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 10:17:15,584 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 10:17:15,584 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 10:17:15,585 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 10:17:15,585 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 10:17:15,585 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 10:17:15,586 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 10:17:15,586 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 10:17:15,586 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 10:17:15,587 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 10:17:15,587 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 10:17:15,587 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 10:17:15,588 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 10:17:15,588 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 10:17:15,588 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 10:17:15,589 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 10:17:15,589 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 10:17:15,589 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 10:17:15,589 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 10:17:15,589 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 10:17:15,590 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 10:17:15,590 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 10:17:15,590 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 10:17:15,590 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 10:17:15,591 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 10:17:15,591 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 10:17:15,591 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 10:17:15,591 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 10:17:15,591 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; [2020-09-25 10:17:16,049 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 10:17:16,078 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 10:17:16,083 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 10:17:16,085 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 10:17:16,086 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 10:17:16,087 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i [2020-09-25 10:17:16,178 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/236657a5d/a7761ae0b2fa483b8bd0dda79c857104/FLAGbc1a9b832 [2020-09-25 10:17:16,720 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 10:17:16,721 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i [2020-09-25 10:17:16,730 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/236657a5d/a7761ae0b2fa483b8bd0dda79c857104/FLAGbc1a9b832 [2020-09-25 10:17:17,064 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/236657a5d/a7761ae0b2fa483b8bd0dda79c857104 [2020-09-25 10:17:17,077 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 10:17:17,083 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 10:17:17,085 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 10:17:17,085 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 10:17:17,089 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 10:17:17,091 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:17:17" (1/1) ... [2020-09-25 10:17:17,095 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1487e564 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:17:17, skipping insertion in model container [2020-09-25 10:17:17,095 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:17:17" (1/1) ... [2020-09-25 10:17:17,107 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 10:17:17,140 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 10:17:17,364 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 10:17:17,378 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 10:17:17,431 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 10:17:17,453 INFO L208 MainTranslator]: Completed translation [2020-09-25 10:17:17,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:17:17 WrapperNode [2020-09-25 10:17:17,454 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 10:17:17,455 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 10:17:17,455 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 10:17:17,455 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 10:17:17,549 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:17:17" (1/1) ... [2020-09-25 10:17:17,550 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:17:17" (1/1) ... [2020-09-25 10:17:17,562 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:17:17" (1/1) ... [2020-09-25 10:17:17,563 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:17:17" (1/1) ... [2020-09-25 10:17:17,569 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:17:17" (1/1) ... [2020-09-25 10:17:17,585 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:17:17" (1/1) ... [2020-09-25 10:17:17,587 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:17:17" (1/1) ... [2020-09-25 10:17:17,590 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 10:17:17,590 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 10:17:17,590 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 10:17:17,591 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 10:17:17,592 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:17:17" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 10:17:17,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 10:17:17,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 10:17:17,668 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-25 10:17:17,669 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-25 10:17:17,669 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 10:17:17,669 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 10:17:17,669 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 10:17:17,670 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-25 10:17:17,670 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-25 10:17:17,670 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 10:17:17,670 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 10:17:17,670 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 10:17:17,671 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 10:17:18,110 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 10:17:18,110 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-09-25 10:17:18,117 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:17:18 BoogieIcfgContainer [2020-09-25 10:17:18,117 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 10:17:18,119 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 10:17:18,119 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 10:17:18,129 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 10:17:18,129 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 10:17:17" (1/3) ... [2020-09-25 10:17:18,130 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e5586d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:17:18, skipping insertion in model container [2020-09-25 10:17:18,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:17:17" (2/3) ... [2020-09-25 10:17:18,131 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e5586d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:17:18, skipping insertion in model container [2020-09-25 10:17:18,131 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:17:18" (3/3) ... [2020-09-25 10:17:18,134 INFO L109 eAbstractionObserver]: Analyzing ICFG apache-escape-absolute.i [2020-09-25 10:17:18,147 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 10:17:18,158 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 10:17:18,183 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 10:17:18,218 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 10:17:18,218 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 10:17:18,218 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 10:17:18,218 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 10:17:18,218 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 10:17:18,219 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 10:17:18,219 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 10:17:18,219 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 10:17:18,245 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states. [2020-09-25 10:17:18,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-09-25 10:17:18,253 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:17:18,254 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] [2020-09-25 10:17:18,255 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:17:18,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:17:18,263 INFO L82 PathProgramCache]: Analyzing trace with hash 60896664, now seen corresponding path program 1 times [2020-09-25 10:17:18,275 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:17:18,276 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1187338809] [2020-09-25 10:17:18,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:17:18,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:17:18,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:17:18,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:17:18,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-09-25 10:17:18,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:17:18,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 293 [2020-09-25 10:17:18,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:17:18,718 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:17:18,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:17:18,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-09-25 10:17:18,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:17:18,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 10:17:18,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:17:18,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:17:18,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:17:18,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:17:18,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:17:18,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:17:18,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:17:18,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:17:18,830 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:17:18,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:17:18,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:17:18,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:17:18,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:17:18,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 10:17:18,850 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1187338809] [2020-09-25 10:17:18,853 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:17:18,854 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 10:17:18,855 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654455010] [2020-09-25 10:17:18,863 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 10:17:18,863 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:17:18,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 10:17:18,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 10:17:18,882 INFO L87 Difference]: Start difference. First operand 92 states. Second operand 6 states. [2020-09-25 10:17:19,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:17:19,362 INFO L93 Difference]: Finished difference Result 178 states and 273 transitions. [2020-09-25 10:17:19,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 10:17:19,364 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2020-09-25 10:17:19,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:17:19,378 INFO L225 Difference]: With dead ends: 178 [2020-09-25 10:17:19,378 INFO L226 Difference]: Without dead ends: 103 [2020-09-25 10:17:19,384 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-25 10:17:19,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2020-09-25 10:17:19,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 93. [2020-09-25 10:17:19,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2020-09-25 10:17:19,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 116 transitions. [2020-09-25 10:17:19,453 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 116 transitions. Word has length 30 [2020-09-25 10:17:19,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:17:19,454 INFO L479 AbstractCegarLoop]: Abstraction has 93 states and 116 transitions. [2020-09-25 10:17:19,454 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 10:17:19,454 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 116 transitions. [2020-09-25 10:17:19,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-25 10:17:19,456 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:17:19,457 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:17:19,457 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 10:17:19,457 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:17:19,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:17:19,458 INFO L82 PathProgramCache]: Analyzing trace with hash -1464371663, now seen corresponding path program 1 times [2020-09-25 10:17:19,458 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:17:19,459 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [478484086] [2020-09-25 10:17:19,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:17:19,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:17:19,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:17:19,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:17:19,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-25 10:17:19,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:17:19,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 208 [2020-09-25 10:17:19,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:17:19,687 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:17:19,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 10:17:19,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 30 [2020-09-25 10:17:19,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 10:17:19,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:17:19,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:17:19,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:17:19,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:17:19,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:17:19,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:17:19,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:17:19,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:17:19,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:17:19,785 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:17:19,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:17:19,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:17:19,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:17:19,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 10:17:19,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 10:17:19,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:17:19,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:17:19,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:17:19,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:17:19,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:17:19,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 10:17:19,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:17:19,809 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:17:19,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:17:19,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:17:19,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 10:17:19,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:17:19,816 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 10:17:19,816 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [478484086] [2020-09-25 10:17:19,816 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:17:19,817 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 10:17:19,817 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331944739] [2020-09-25 10:17:19,819 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 10:17:19,820 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:17:19,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 10:17:19,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-25 10:17:19,821 INFO L87 Difference]: Start difference. First operand 93 states and 116 transitions. Second operand 7 states. [2020-09-25 10:17:20,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:17:20,107 INFO L93 Difference]: Finished difference Result 99 states and 121 transitions. [2020-09-25 10:17:20,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 10:17:20,108 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2020-09-25 10:17:20,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:17:20,114 INFO L225 Difference]: With dead ends: 99 [2020-09-25 10:17:20,114 INFO L226 Difference]: Without dead ends: 97 [2020-09-25 10:17:20,117 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-09-25 10:17:20,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2020-09-25 10:17:20,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2020-09-25 10:17:20,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-09-25 10:17:20,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 119 transitions. [2020-09-25 10:17:20,154 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 119 transitions. Word has length 35 [2020-09-25 10:17:20,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:17:20,154 INFO L479 AbstractCegarLoop]: Abstraction has 97 states and 119 transitions. [2020-09-25 10:17:20,154 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 10:17:20,155 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 119 transitions. [2020-09-25 10:17:20,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-09-25 10:17:20,157 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:17:20,157 INFO L422 BasicCegarLoop]: trace histogram [7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:17:20,158 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 10:17:20,158 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:17:20,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:17:20,158 INFO L82 PathProgramCache]: Analyzing trace with hash -1188311592, now seen corresponding path program 1 times [2020-09-25 10:17:20,159 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:17:20,159 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1833562912] [2020-09-25 10:17:20,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:17:20,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:17:20,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:17:20,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:17:20,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:17:20,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:17:22,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:17:22,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 10:17:22,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 10:17:22,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1876 [2020-09-25 10:17:22,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:17:22,057 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:17:22,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 10:17:22,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-09-25 10:17:22,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-09-25 10:17:22,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 10:17:22,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:17:22,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:17:22,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:17:22,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:17:22,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:17:22,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:17:22,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:17:22,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:17:22,158 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:17:22,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:17:22,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:17:22,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:17:22,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:17:22,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 10:17:22,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:17:22,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:17:22,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:17:22,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:17:22,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:17:22,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 10:17:22,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:17:22,175 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:17:22,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:17:22,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:17:22,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 10:17:22,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:17:22,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-09-25 10:17:22,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:17:22,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:17:22,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:17:22,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:17:22,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:17:22,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 10:17:22,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:17:22,195 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:17:22,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:17:22,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:17:22,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 10:17:22,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 10:17:22,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-25 10:17:22,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:17:22,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:17:22,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:17:22,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:17:22,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:17:22,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 10:17:22,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 10:17:22,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:17:22,220 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:17:22,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 10:17:22,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:17:22,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:17:22,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:17:22,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-25 10:17:22,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:17:22,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:17:22,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:17:22,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:17:22,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:17:22,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 10:17:22,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:17:22,261 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:17:22,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:17:22,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:17:22,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 10:17:22,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:17:22,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-09-25 10:17:22,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:17:22,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:17:22,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:17:22,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:17:22,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:17:22,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 10:17:22,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 10:17:22,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:17:22,282 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:17:22,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 10:17:22,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:17:22,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:17:22,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:17:22,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 10:17:22,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:17:22,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:17:22,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:17:22,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:17:22,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:17:22,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 10:17:22,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:17:22,301 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:17:22,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:17:22,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:17:22,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 10:17:22,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:17:22,323 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 25 proven. 11 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-09-25 10:17:22,324 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1833562912] [2020-09-25 10:17:22,324 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 10:17:22,324 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-25 10:17:22,325 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992028017] [2020-09-25 10:17:22,325 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 10:17:22,326 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:17:22,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 10:17:22,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 10:17:22,326 INFO L87 Difference]: Start difference. First operand 97 states and 119 transitions. Second operand 8 states. [2020-09-25 10:17:22,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:17:22,698 INFO L93 Difference]: Finished difference Result 104 states and 128 transitions. [2020-09-25 10:17:22,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 10:17:22,699 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 65 [2020-09-25 10:17:22,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:17:22,701 INFO L225 Difference]: With dead ends: 104 [2020-09-25 10:17:22,701 INFO L226 Difference]: Without dead ends: 102 [2020-09-25 10:17:22,705 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-09-25 10:17:22,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2020-09-25 10:17:22,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 99. [2020-09-25 10:17:22,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2020-09-25 10:17:22,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 121 transitions. [2020-09-25 10:17:22,735 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 121 transitions. Word has length 65 [2020-09-25 10:17:22,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:17:22,738 INFO L479 AbstractCegarLoop]: Abstraction has 99 states and 121 transitions. [2020-09-25 10:17:22,738 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 10:17:22,739 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 121 transitions. [2020-09-25 10:17:22,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-09-25 10:17:22,749 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:17:22,749 INFO L422 BasicCegarLoop]: trace histogram [13, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:17:22,749 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 10:17:22,750 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:17:22,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:17:22,751 INFO L82 PathProgramCache]: Analyzing trace with hash -1072542460, now seen corresponding path program 1 times [2020-09-25 10:17:22,751 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:17:22,751 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [481602092] [2020-09-25 10:17:22,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:17:22,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:17:22,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:17:22,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:17:22,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:17:23,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:17:23,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:17:27,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:17:27,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-09-25 10:17:27,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 10:17:27,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-09-25 10:17:27,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:17:27,808 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:17:27,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:17:27,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 64 [2020-09-25 10:17:27,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-09-25 10:17:27,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:17:27,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:17:27,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:17:27,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:17:27,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:17:27,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:17:27,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:17:27,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 10:17:27,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:17:27,856 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:17:27,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:17:27,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:17:27,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:17:27,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:17:27,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 10:17:27,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:17:27,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:17:27,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:17:27,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:17:27,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:17:27,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:17:27,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:17:27,865 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:17:27,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:17:27,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:17:27,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:17:27,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:17:27,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-09-25 10:17:27,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:17:27,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:17:27,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:17:27,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:17:27,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:17:27,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:17:27,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:17:27,874 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:17:27,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:17:27,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:17:27,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:17:27,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:17:27,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-25 10:17:27,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:17:27,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:17:27,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:17:27,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:17:27,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:17:27,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:17:27,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:17:27,884 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:17:27,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:17:27,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:17:27,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:17:27,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:17:27,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-25 10:17:27,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:17:27,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:17:27,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:17:27,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:17:27,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:17:27,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:17:27,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:17:27,894 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:17:27,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:17:27,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:17:27,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:17:27,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:17:27,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-09-25 10:17:27,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:17:27,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:17:27,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:17:27,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:17:27,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:17:27,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 10:17:27,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:17:27,908 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:17:27,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:17:27,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:17:27,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 10:17:27,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:17:27,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 10:17:27,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:17:27,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:17:27,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:17:27,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:17:27,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:17:27,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 10:17:27,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:17:27,924 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:17:27,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:17:27,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:17:27,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 10:17:27,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:17:27,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-09-25 10:17:27,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:17:27,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:17:27,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:17:27,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:17:27,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:17:27,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 10:17:27,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 10:17:27,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:17:27,940 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:17:27,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:17:27,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:17:27,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 10:17:27,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:17:27,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-09-25 10:17:27,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:17:27,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:17:27,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:17:27,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:17:27,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:17:27,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 10:17:27,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:17:27,955 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:17:27,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:17:27,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:17:27,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 10:17:27,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:17:27,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-09-25 10:17:27,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:17:27,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:17:27,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:17:27,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:17:27,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:17:27,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 10:17:27,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 10:17:27,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:17:27,969 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:17:27,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:17:27,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:17:27,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 10:17:27,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:17:27,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-25 10:17:27,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:17:27,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:17:27,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:17:27,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:17:27,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:17:27,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 10:17:27,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:17:27,984 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:17:27,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:17:27,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:17:27,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 10:17:27,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:17:27,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-09-25 10:17:27,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:17:27,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:17:27,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:17:27,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:17:27,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:17:27,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 10:17:27,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:17:27,997 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:17:27,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 10:17:27,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 10:17:27,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 10:17:27,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:17:28,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-09-25 10:17:28,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:17:28,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:17:28,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:17:28,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:17:28,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:17:28,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:17:28,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:17:28,026 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:17:28,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:17:28,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 10:17:28,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:17:28,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:17:28,041 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 54 proven. 3 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2020-09-25 10:17:28,042 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [481602092] [2020-09-25 10:17:28,042 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 10:17:28,042 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-25 10:17:28,042 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210291339] [2020-09-25 10:17:28,043 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 10:17:28,043 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:17:28,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 10:17:28,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 10:17:28,044 INFO L87 Difference]: Start difference. First operand 99 states and 121 transitions. Second operand 6 states. [2020-09-25 10:17:28,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:17:28,239 INFO L93 Difference]: Finished difference Result 144 states and 177 transitions. [2020-09-25 10:17:28,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 10:17:28,239 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 111 [2020-09-25 10:17:28,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:17:28,242 INFO L225 Difference]: With dead ends: 144 [2020-09-25 10:17:28,242 INFO L226 Difference]: Without dead ends: 99 [2020-09-25 10:17:28,243 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-25 10:17:28,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2020-09-25 10:17:28,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2020-09-25 10:17:28,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2020-09-25 10:17:28,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 119 transitions. [2020-09-25 10:17:28,277 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 119 transitions. Word has length 111 [2020-09-25 10:17:28,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:17:28,281 INFO L479 AbstractCegarLoop]: Abstraction has 99 states and 119 transitions. [2020-09-25 10:17:28,281 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 10:17:28,281 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 119 transitions. [2020-09-25 10:17:28,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-09-25 10:17:28,283 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:17:28,286 INFO L422 BasicCegarLoop]: trace histogram [13, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:17:28,286 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 10:17:28,287 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:17:28,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:17:28,287 INFO L82 PathProgramCache]: Analyzing trace with hash 1342891699, now seen corresponding path program 1 times [2020-09-25 10:17:28,287 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:17:28,288 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1408936249] [2020-09-25 10:17:28,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:17:28,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:17:28,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:17:28,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:17:28,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 147 [2020-09-25 10:17:28,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:17:28,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 229 [2020-09-25 10:17:28,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:17:28,545 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:17:28,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:17:28,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 120 [2020-09-25 10:17:28,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-25 10:17:28,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:17:28,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:17:28,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:17:28,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:17:28,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:17:28,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:17:28,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:17:28,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 10:17:28,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:17:28,624 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:17:28,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:17:28,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:17:28,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:17:28,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:17:28,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 10:17:28,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:17:28,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:17:28,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:17:28,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:17:28,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:17:28,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:17:28,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:17:28,635 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:17:28,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:17:28,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:17:28,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:17:28,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:17:28,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-09-25 10:17:28,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:17:28,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:17:28,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:17:28,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:17:28,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:17:28,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:17:28,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:17:28,645 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:17:28,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:17:28,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:17:28,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:17:28,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:17:28,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-25 10:17:28,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:17:28,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:17:28,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:17:28,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:17:28,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:17:28,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:17:28,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:17:28,655 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:17:28,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:17:28,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:17:28,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:17:28,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:17:28,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-25 10:17:28,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:17:28,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:17:28,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:17:28,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:17:28,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:17:28,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:17:28,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:17:28,664 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:17:28,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:17:28,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:17:28,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:17:28,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:17:28,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-09-25 10:17:28,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:17:28,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:17:28,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:17:28,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:17:28,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:17:28,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:17:28,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:17:28,674 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:17:28,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:17:28,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:17:28,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:17:28,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:17:28,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-09-25 10:17:28,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:17:28,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:17:28,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:17:28,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:17:28,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:17:28,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:17:28,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:17:28,683 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:17:28,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:17:28,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:17:28,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:17:28,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:17:28,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-25 10:17:28,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:17:28,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:17:28,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:17:28,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:17:28,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:17:28,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 10:17:28,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:17:28,694 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:17:28,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:17:28,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:17:28,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:17:28,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:17:28,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-09-25 10:17:28,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:17:28,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:17:28,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:17:28,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:17:28,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:17:28,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:17:28,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:17:28,702 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:17:28,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:17:28,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:17:28,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:17:28,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:17:28,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 10:17:28,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:17:28,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:17:28,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:17:28,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:17:28,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:17:28,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:17:28,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:17:28,711 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:17:28,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:17:28,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:17:28,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:17:28,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:17:28,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-09-25 10:17:28,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:17:28,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:17:28,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:17:28,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:17:28,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:17:28,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 10:17:28,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:17:28,724 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:17:28,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:17:28,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:17:28,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:17:28,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:17:28,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-09-25 10:17:28,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:17:28,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:17:28,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:17:28,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:17:28,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:17:28,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 10:17:28,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:17:28,740 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:17:28,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:17:28,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:17:28,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 10:17:28,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:17:28,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 10:17:28,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:17:28,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:17:28,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:17:28,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:17:28,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:17:28,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 10:17:28,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:17:28,755 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:17:28,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:17:28,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:17:28,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 10:17:28,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:17:28,769 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2020-09-25 10:17:28,770 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1408936249] [2020-09-25 10:17:28,770 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:17:28,771 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 10:17:28,771 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99918250] [2020-09-25 10:17:28,773 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 10:17:28,773 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:17:28,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 10:17:28,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 10:17:28,774 INFO L87 Difference]: Start difference. First operand 99 states and 119 transitions. Second operand 6 states. [2020-09-25 10:17:28,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:17:28,870 INFO L93 Difference]: Finished difference Result 110 states and 129 transitions. [2020-09-25 10:17:28,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 10:17:28,871 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 114 [2020-09-25 10:17:28,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:17:28,875 INFO L225 Difference]: With dead ends: 110 [2020-09-25 10:17:28,875 INFO L226 Difference]: Without dead ends: 108 [2020-09-25 10:17:28,876 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-25 10:17:28,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2020-09-25 10:17:28,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 103. [2020-09-25 10:17:28,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2020-09-25 10:17:28,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 122 transitions. [2020-09-25 10:17:28,898 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 122 transitions. Word has length 114 [2020-09-25 10:17:28,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:17:28,899 INFO L479 AbstractCegarLoop]: Abstraction has 103 states and 122 transitions. [2020-09-25 10:17:28,899 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 10:17:28,899 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 122 transitions. [2020-09-25 10:17:28,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-09-25 10:17:28,910 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:17:28,910 INFO L422 BasicCegarLoop]: trace histogram [14, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:17:28,910 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 10:17:28,911 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:17:28,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:17:28,911 INFO L82 PathProgramCache]: Analyzing trace with hash -279016842, now seen corresponding path program 1 times [2020-09-25 10:17:28,911 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:17:28,912 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1774298911] [2020-09-25 10:17:28,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:17:28,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:17:28,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:17:29,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:17:29,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-09-25 10:17:29,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:17:29,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 221 [2020-09-25 10:17:29,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:17:29,161 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:17:29,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:17:29,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 105 [2020-09-25 10:17:29,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 10:17:29,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:17:29,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:17:29,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:17:29,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:17:29,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:17:29,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:17:29,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:17:29,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:17:29,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:17:29,215 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:17:29,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:17:29,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:17:29,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:17:29,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:17:29,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 10:17:29,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:17:29,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:17:29,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:17:29,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:17:29,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:17:29,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:17:29,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:17:29,224 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:17:29,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:17:29,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:17:29,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:17:29,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:17:29,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-09-25 10:17:29,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:17:29,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:17:29,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:17:29,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:17:29,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:17:29,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:17:29,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:17:29,232 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:17:29,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:17:29,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:17:29,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:17:29,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:17:29,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-25 10:17:29,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:17:29,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:17:29,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:17:29,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:17:29,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:17:29,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:17:29,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:17:29,239 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:17:29,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:17:29,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:17:29,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:17:29,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:17:29,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-25 10:17:29,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:17:29,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:17:29,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:17:29,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:17:29,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:17:29,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:17:29,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:17:29,247 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:17:29,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:17:29,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:17:29,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:17:29,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:17:29,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-09-25 10:17:29,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:17:29,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:17:29,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:17:29,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:17:29,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:17:29,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:17:29,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:17:29,256 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:17:29,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:17:29,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:17:29,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:17:29,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:17:29,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-09-25 10:17:29,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:17:29,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:17:29,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:17:29,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:17:29,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:17:29,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 10:17:29,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:17:29,267 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:17:29,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:17:29,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:17:29,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:17:29,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:17:29,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-25 10:17:29,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:17:29,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:17:29,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:17:29,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:17:29,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:17:29,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 10:17:29,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:17:29,277 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:17:29,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:17:29,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:17:29,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:17:29,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:17:29,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-09-25 10:17:29,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:17:29,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:17:29,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:17:29,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:17:29,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:17:29,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:17:29,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:17:29,287 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:17:29,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:17:29,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:17:29,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:17:29,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:17:29,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 10:17:29,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:17:29,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:17:29,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:17:29,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:17:29,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:17:29,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 10:17:29,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:17:29,301 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:17:29,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:17:29,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:17:29,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 10:17:29,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:17:29,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-09-25 10:17:29,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:17:29,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:17:29,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:17:29,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:17:29,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:17:29,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 10:17:29,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:17:29,314 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:17:29,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:17:29,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:17:29,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 10:17:29,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:17:29,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-09-25 10:17:29,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:17:29,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:17:29,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:17:29,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:17:29,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:17:29,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 10:17:29,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:17:29,328 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:17:29,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:17:29,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:17:29,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 10:17:29,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:17:29,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 10:17:29,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:17:29,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:17:29,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:17:29,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:17:29,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:17:29,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 10:17:29,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:17:29,343 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:17:29,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:17:29,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:17:29,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 10:17:29,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:17:29,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-09-25 10:17:29,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:17:29,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:17:29,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:17:29,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:17:29,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:17:29,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 10:17:29,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:17:29,361 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:17:29,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:17:29,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:17:29,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 10:17:29,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:17:29,401 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2020-09-25 10:17:29,402 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1774298911] [2020-09-25 10:17:29,403 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:17:29,403 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 10:17:29,403 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970970416] [2020-09-25 10:17:29,404 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 10:17:29,405 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:17:29,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 10:17:29,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 10:17:29,405 INFO L87 Difference]: Start difference. First operand 103 states and 122 transitions. Second operand 6 states. [2020-09-25 10:17:29,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:17:29,517 INFO L93 Difference]: Finished difference Result 117 states and 138 transitions. [2020-09-25 10:17:29,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 10:17:29,518 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 119 [2020-09-25 10:17:29,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:17:29,520 INFO L225 Difference]: With dead ends: 117 [2020-09-25 10:17:29,520 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 10:17:29,522 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-25 10:17:29,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 10:17:29,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 10:17:29,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 10:17:29,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 10:17:29,526 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 119 [2020-09-25 10:17:29,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:17:29,526 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 10:17:29,526 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 10:17:29,527 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 10:17:29,527 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 10:17:29,527 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 10:17:29,530 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 10:17:30,123 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-09-25 10:17:30,124 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-25 10:17:30,124 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-25 10:17:30,124 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-25 10:17:30,124 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-25 10:17:30,124 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-25 10:17:30,124 INFO L268 CegarLoopResult]: For program point L4-3(lines 3 5) no Hoare annotation was computed. [2020-09-25 10:17:30,125 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 3 5) no Hoare annotation was computed. [2020-09-25 10:17:30,125 INFO L268 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-09-25 10:17:30,126 INFO L268 CegarLoopResult]: For program point L4-1(line 4) no Hoare annotation was computed. [2020-09-25 10:17:30,126 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 3 5) no Hoare annotation was computed. [2020-09-25 10:17:30,126 INFO L264 CegarLoopResult]: At program point L60(line 60) the Hoare annotation is: (and (<= 1 main_~c~0) (< 0 main_~scheme~0) (<= 1 main_~cp~0) (<= (+ main_~scheme~0 1) main_~urilen~0) (<= (+ main_~c~0 1) main_~tokenlen~0) (not (= (+ main_~cp~0 1) main_~urilen~0)) (< main_~cp~0 main_~urilen~0)) [2020-09-25 10:17:30,127 INFO L264 CegarLoopResult]: At program point L60-1(line 60) the Hoare annotation is: (and (<= 1 main_~c~0) (< 0 main_~scheme~0) (<= 1 main_~cp~0) (<= (+ main_~scheme~0 1) main_~urilen~0) (<= (+ main_~c~0 1) main_~tokenlen~0) (not (= (+ main_~cp~0 1) main_~urilen~0)) (< main_~cp~0 main_~urilen~0)) [2020-09-25 10:17:30,127 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 13 72) no Hoare annotation was computed. [2020-09-25 10:17:30,127 INFO L264 CegarLoopResult]: At program point L52(line 52) the Hoare annotation is: (and (< 0 main_~scheme~0) (<= 1 main_~cp~0) (<= (+ main_~scheme~0 1) main_~urilen~0) (<= 0 main_~c~0) (< main_~cp~0 main_~urilen~0)) [2020-09-25 10:17:30,127 INFO L268 CegarLoopResult]: For program point L19(line 19) no Hoare annotation was computed. [2020-09-25 10:17:30,127 INFO L264 CegarLoopResult]: At program point L52-1(line 52) the Hoare annotation is: (and (< 0 main_~scheme~0) (<= 1 main_~cp~0) (<= (+ main_~scheme~0 1) main_~urilen~0) (<= 0 main_~c~0) (< main_~cp~0 main_~urilen~0)) [2020-09-25 10:17:30,128 INFO L268 CegarLoopResult]: For program point L19-1(line 19) no Hoare annotation was computed. [2020-09-25 10:17:30,128 INFO L268 CegarLoopResult]: For program point L19-2(line 19) no Hoare annotation was computed. [2020-09-25 10:17:30,128 INFO L264 CegarLoopResult]: At program point L36-1(lines 35 41) the Hoare annotation is: (and (< 0 main_~scheme~0) (<= 1 main_~cp~0) (<= (+ main_~scheme~0 1) main_~urilen~0) (< main_~cp~0 main_~urilen~0)) [2020-09-25 10:17:30,128 INFO L264 CegarLoopResult]: At program point L36-2(lines 36 41) the Hoare annotation is: (and (< 0 main_~scheme~0) (<= 1 main_~cp~0) (<= (+ main_~scheme~0 1) main_~urilen~0) (< main_~cp~0 main_~urilen~0)) [2020-09-25 10:17:30,128 INFO L264 CegarLoopResult]: At program point L61(line 61) the Hoare annotation is: (and (<= 1 main_~c~0) (< 0 main_~scheme~0) (<= 1 main_~cp~0) (<= (+ main_~scheme~0 1) main_~urilen~0) (<= (+ main_~c~0 1) main_~tokenlen~0) (not (= (+ main_~cp~0 1) main_~urilen~0)) (< main_~cp~0 main_~urilen~0)) [2020-09-25 10:17:30,128 INFO L268 CegarLoopResult]: For program point L20(line 20) no Hoare annotation was computed. [2020-09-25 10:17:30,130 INFO L268 CegarLoopResult]: For program point L20-1(line 20) no Hoare annotation was computed. [2020-09-25 10:17:30,130 INFO L268 CegarLoopResult]: For program point L20-2(line 20) no Hoare annotation was computed. [2020-09-25 10:17:30,131 INFO L264 CegarLoopResult]: At program point L45(line 45) the Hoare annotation is: (and (< 0 main_~scheme~0) (<= 1 main_~cp~0) (<= (+ main_~scheme~0 1) main_~urilen~0) (not (= (+ main_~cp~0 1) main_~urilen~0)) (< main_~cp~0 main_~urilen~0)) [2020-09-25 10:17:30,132 INFO L264 CegarLoopResult]: At program point L45-1(line 45) the Hoare annotation is: (and (< 0 main_~scheme~0) (<= 1 main_~cp~0) (<= (+ main_~scheme~0 1) main_~urilen~0) (not (= (+ main_~cp~0 1) main_~urilen~0)) (< main_~cp~0 main_~urilen~0)) [2020-09-25 10:17:30,132 INFO L271 CegarLoopResult]: At program point L70(lines 14 72) the Hoare annotation is: true [2020-09-25 10:17:30,132 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-09-25 10:17:30,133 INFO L268 CegarLoopResult]: For program point L37-1(line 37) no Hoare annotation was computed. [2020-09-25 10:17:30,133 INFO L268 CegarLoopResult]: For program point L37-2(line 37) no Hoare annotation was computed. [2020-09-25 10:17:30,133 INFO L268 CegarLoopResult]: For program point L37-4(line 37) no Hoare annotation was computed. [2020-09-25 10:17:30,134 INFO L264 CegarLoopResult]: At program point L62(line 62) the Hoare annotation is: (and (<= 1 main_~c~0) (< 0 main_~scheme~0) (<= 1 main_~cp~0) (<= (+ main_~scheme~0 1) main_~urilen~0) (<= (+ main_~c~0 1) main_~tokenlen~0) (not (= (+ main_~cp~0 1) main_~urilen~0)) (< main_~cp~0 main_~urilen~0)) [2020-09-25 10:17:30,135 INFO L268 CegarLoopResult]: For program point L21(line 21) no Hoare annotation was computed. [2020-09-25 10:17:30,135 INFO L264 CegarLoopResult]: At program point L54-1(lines 53 66) the Hoare annotation is: (and (< 0 main_~scheme~0) (<= 1 main_~cp~0) (<= (+ main_~scheme~0 1) main_~urilen~0) (<= 0 main_~c~0) (< main_~cp~0 main_~urilen~0)) [2020-09-25 10:17:30,135 INFO L268 CegarLoopResult]: For program point L21-1(line 21) no Hoare annotation was computed. [2020-09-25 10:17:30,135 INFO L268 CegarLoopResult]: For program point L46(lines 33 69) no Hoare annotation was computed. [2020-09-25 10:17:30,135 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 13 72) no Hoare annotation was computed. [2020-09-25 10:17:30,136 INFO L264 CegarLoopResult]: At program point L38(line 38) the Hoare annotation is: (and (< 0 main_~scheme~0) (<= 1 main_~cp~0) (<= (+ main_~scheme~0 1) main_~urilen~0) (not (= (+ main_~cp~0 1) main_~urilen~0)) (< main_~cp~0 main_~urilen~0)) [2020-09-25 10:17:30,136 INFO L264 CegarLoopResult]: At program point L38-1(line 38) the Hoare annotation is: (and (< 0 main_~scheme~0) (<= 1 main_~cp~0) (<= (+ main_~scheme~0 1) main_~urilen~0) (not (= (+ main_~cp~0 1) main_~urilen~0)) (< main_~cp~0 main_~urilen~0)) [2020-09-25 10:17:30,136 INFO L268 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-09-25 10:17:30,136 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 13 72) the Hoare annotation is: true [2020-09-25 10:17:30,136 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-09-25 10:17:30,136 INFO L268 CegarLoopResult]: For program point L22-1(line 22) no Hoare annotation was computed. [2020-09-25 10:17:30,136 INFO L268 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-09-25 10:17:30,137 INFO L264 CegarLoopResult]: At program point L31(line 31) the Hoare annotation is: (and (< 0 main_~scheme~0) (<= 1 main_~cp~0) (<= (+ main_~scheme~0 1) main_~urilen~0) (< main_~cp~0 main_~urilen~0)) [2020-09-25 10:17:30,137 INFO L264 CegarLoopResult]: At program point L31-1(line 31) the Hoare annotation is: (and (< 0 main_~scheme~0) (<= 1 main_~cp~0) (<= (+ main_~scheme~0 1) main_~urilen~0) (< main_~cp~0 main_~urilen~0)) [2020-09-25 10:17:30,137 INFO L264 CegarLoopResult]: At program point L56(line 56) the Hoare annotation is: (and (< 0 main_~scheme~0) (<= 1 main_~cp~0) (<= (+ main_~c~0 2) main_~tokenlen~0) (<= (+ main_~scheme~0 1) main_~urilen~0) (<= 0 main_~c~0) (not (= (+ main_~cp~0 1) main_~urilen~0)) (< main_~cp~0 main_~urilen~0)) [2020-09-25 10:17:30,137 INFO L268 CegarLoopResult]: For program point L23(line 23) no Hoare annotation was computed. [2020-09-25 10:17:30,137 INFO L264 CegarLoopResult]: At program point L56-1(line 56) the Hoare annotation is: (and (< 0 main_~scheme~0) (<= 1 main_~cp~0) (<= (+ main_~c~0 2) main_~tokenlen~0) (<= (+ main_~scheme~0 1) main_~urilen~0) (<= 0 main_~c~0) (not (= (+ main_~cp~0 1) main_~urilen~0)) (< main_~cp~0 main_~urilen~0)) [2020-09-25 10:17:30,138 INFO L268 CegarLoopResult]: For program point L23-1(line 23) no Hoare annotation was computed. [2020-09-25 10:17:30,139 INFO L268 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed. [2020-09-25 10:17:30,139 INFO L268 CegarLoopResult]: For program point L48-1(line 48) no Hoare annotation was computed. [2020-09-25 10:17:30,139 INFO L268 CegarLoopResult]: For program point L48-2(line 48) no Hoare annotation was computed. [2020-09-25 10:17:30,139 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-09-25 10:17:30,139 INFO L268 CegarLoopResult]: For program point L40-1(line 40) no Hoare annotation was computed. [2020-09-25 10:17:30,139 INFO L268 CegarLoopResult]: For program point L65(line 65) no Hoare annotation was computed. [2020-09-25 10:17:30,139 INFO L268 CegarLoopResult]: For program point L32(line 32) no Hoare annotation was computed. [2020-09-25 10:17:30,139 INFO L268 CegarLoopResult]: For program point L65-1(line 65) no Hoare annotation was computed. [2020-09-25 10:17:30,140 INFO L268 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-09-25 10:17:30,140 INFO L268 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-09-25 10:17:30,140 INFO L268 CegarLoopResult]: For program point L24-1(lines 14 72) no Hoare annotation was computed. [2020-09-25 10:17:30,140 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-09-25 10:17:30,141 INFO L268 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-09-25 10:17:30,141 INFO L268 CegarLoopResult]: For program point L16-1(line 16) no Hoare annotation was computed. [2020-09-25 10:17:30,141 INFO L268 CegarLoopResult]: For program point L33(lines 33 69) no Hoare annotation was computed. [2020-09-25 10:17:30,141 INFO L268 CegarLoopResult]: For program point L33-1(line 33) no Hoare annotation was computed. [2020-09-25 10:17:30,141 INFO L268 CegarLoopResult]: For program point L33-3(line 33) no Hoare annotation was computed. [2020-09-25 10:17:30,142 INFO L268 CegarLoopResult]: For program point L58(lines 58 64) no Hoare annotation was computed. [2020-09-25 10:17:30,142 INFO L268 CegarLoopResult]: For program point L25(lines 14 72) no Hoare annotation was computed. [2020-09-25 10:17:30,142 INFO L268 CegarLoopResult]: For program point L58-1(line 58) no Hoare annotation was computed. [2020-09-25 10:17:30,144 INFO L268 CegarLoopResult]: For program point L58-2(line 58) no Hoare annotation was computed. [2020-09-25 10:17:30,144 INFO L268 CegarLoopResult]: For program point L58-3(lines 58 64) no Hoare annotation was computed. [2020-09-25 10:17:30,144 INFO L268 CegarLoopResult]: For program point L50(line 50) no Hoare annotation was computed. [2020-09-25 10:17:30,144 INFO L268 CegarLoopResult]: For program point L17(line 17) no Hoare annotation was computed. [2020-09-25 10:17:30,144 INFO L268 CegarLoopResult]: For program point L50-1(lines 50 68) no Hoare annotation was computed. [2020-09-25 10:17:30,145 INFO L268 CegarLoopResult]: For program point L17-1(line 17) no Hoare annotation was computed. [2020-09-25 10:17:30,145 INFO L268 CegarLoopResult]: For program point L50-2(line 50) no Hoare annotation was computed. [2020-09-25 10:17:30,145 INFO L268 CegarLoopResult]: For program point L50-3(line 50) no Hoare annotation was computed. [2020-09-25 10:17:30,145 INFO L264 CegarLoopResult]: At program point L42(line 42) the Hoare annotation is: (and (< 0 main_~scheme~0) (<= 1 main_~cp~0) (<= (+ main_~scheme~0 1) main_~urilen~0) (< main_~cp~0 main_~urilen~0)) [2020-09-25 10:17:30,145 INFO L264 CegarLoopResult]: At program point L34(line 34) the Hoare annotation is: (and (< 0 main_~scheme~0) (<= 1 main_~cp~0) (<= (+ main_~scheme~0 1) main_~urilen~0) (< main_~cp~0 main_~urilen~0)) [2020-09-25 10:17:30,145 INFO L264 CegarLoopResult]: At program point L34-1(line 34) the Hoare annotation is: (and (< 0 main_~scheme~0) (<= 1 main_~cp~0) (<= (+ main_~scheme~0 1) main_~urilen~0) (< main_~cp~0 main_~urilen~0)) [2020-09-25 10:17:30,146 INFO L268 CegarLoopResult]: For program point L59(line 59) no Hoare annotation was computed. [2020-09-25 10:17:30,146 INFO L268 CegarLoopResult]: For program point L26(lines 14 72) no Hoare annotation was computed. [2020-09-25 10:17:30,146 INFO L268 CegarLoopResult]: For program point L59-1(line 59) no Hoare annotation was computed. [2020-09-25 10:17:30,146 INFO L268 CegarLoopResult]: For program point L59-2(line 59) no Hoare annotation was computed. [2020-09-25 10:17:30,146 INFO L268 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-09-25 10:17:30,146 INFO L268 CegarLoopResult]: For program point L18(line 18) no Hoare annotation was computed. [2020-09-25 10:17:30,146 INFO L268 CegarLoopResult]: For program point L18-1(line 18) no Hoare annotation was computed. [2020-09-25 10:17:30,146 INFO L268 CegarLoopResult]: For program point L18-2(line 18) no Hoare annotation was computed. [2020-09-25 10:17:30,147 INFO L268 CegarLoopResult]: For program point L43(lines 33 69) no Hoare annotation was computed. [2020-09-25 10:17:30,147 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 6 11) the Hoare annotation is: true [2020-09-25 10:17:30,147 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 6 11) no Hoare annotation was computed. [2020-09-25 10:17:30,147 INFO L268 CegarLoopResult]: For program point L8(line 8) no Hoare annotation was computed. [2020-09-25 10:17:30,147 INFO L268 CegarLoopResult]: For program point L7(lines 7 9) no Hoare annotation was computed. [2020-09-25 10:17:30,147 INFO L268 CegarLoopResult]: For program point L7-2(lines 6 11) no Hoare annotation was computed. [2020-09-25 10:17:30,147 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-09-25 10:17:30,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 10:17:30 BoogieIcfgContainer [2020-09-25 10:17:30,184 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 10:17:30,190 INFO L168 Benchmark]: Toolchain (without parser) took 13108.02 ms. Allocated memory was 140.5 MB in the beginning and 323.5 MB in the end (delta: 183.0 MB). Free memory was 103.8 MB in the beginning and 205.4 MB in the end (delta: -101.6 MB). Peak memory consumption was 81.3 MB. Max. memory is 7.1 GB. [2020-09-25 10:17:30,191 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 10:17:30,198 INFO L168 Benchmark]: CACSL2BoogieTranslator took 370.27 ms. Allocated memory is still 140.5 MB. Free memory was 103.1 MB in the beginning and 92.7 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. [2020-09-25 10:17:30,200 INFO L168 Benchmark]: Boogie Preprocessor took 134.74 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 92.7 MB in the beginning and 181.5 MB in the end (delta: -88.9 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB. [2020-09-25 10:17:30,201 INFO L168 Benchmark]: RCFGBuilder took 527.16 ms. Allocated memory is still 203.4 MB. Free memory was 181.5 MB in the beginning and 159.5 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. [2020-09-25 10:17:30,202 INFO L168 Benchmark]: TraceAbstraction took 12065.80 ms. Allocated memory was 203.4 MB in the beginning and 323.5 MB in the end (delta: 120.1 MB). Free memory was 158.8 MB in the beginning and 205.4 MB in the end (delta: -46.6 MB). Peak memory consumption was 73.5 MB. Max. memory is 7.1 GB. [2020-09-25 10:17:30,218 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 370.27 ms. Allocated memory is still 140.5 MB. Free memory was 103.1 MB in the beginning and 92.7 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 134.74 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 92.7 MB in the beginning and 181.5 MB in the end (delta: -88.9 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 527.16 ms. Allocated memory is still 203.4 MB. Free memory was 181.5 MB in the beginning and 159.5 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 12065.80 ms. Allocated memory was 203.4 MB in the beginning and 323.5 MB in the end (delta: 120.1 MB). Free memory was 158.8 MB in the beginning and 205.4 MB in the end (delta: -46.6 MB). Peak memory consumption was 73.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 35]: Loop Invariant Derived loop invariant: ((0 < scheme && 1 <= cp) && scheme + 1 <= urilen) && cp < urilen - InvariantResult [Line: 53]: Loop Invariant Derived loop invariant: (((0 < scheme && 1 <= cp) && scheme + 1 <= urilen) && 0 <= c) && cp < urilen - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 97 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 11.3s, OverallIterations: 6, TraceHistogramMax: 14, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 553 SDtfs, 295 SDslu, 1564 SDs, 0 SdLazy, 653 SolverSat, 174 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 149 GetRequests, 111 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=103occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 18 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 26 LocationsWithAnnotation, 76 PreInvPairs, 106 NumberOfFragments, 423 HoareAnnotationTreeSize, 76 FomulaSimplifications, 437 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 26 FomulaSimplificationsInter, 126 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 8.9s InterpolantComputationTime, 474 NumberOfCodeBlocks, 474 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 468 ConstructedInterpolants, 0 QuantifiedInterpolants, 65422 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 4 PerfectInterpolantSequences, 974/988 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...