/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 SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label41.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 11:14:21,194 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 11:14:21,197 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 11:14:21,237 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 11:14:21,237 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 11:14:21,245 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 11:14:21,247 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 11:14:21,250 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 11:14:21,252 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 11:14:21,256 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 11:14:21,257 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 11:14:21,258 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 11:14:21,258 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 11:14:21,261 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 11:14:21,264 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 11:14:21,265 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 11:14:21,267 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 11:14:21,269 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 11:14:21,270 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 11:14:21,280 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 11:14:21,282 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 11:14:21,283 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 11:14:21,284 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 11:14:21,285 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 11:14:21,300 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 11:14:21,300 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 11:14:21,301 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 11:14:21,301 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 11:14:21,302 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 11:14:21,305 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 11:14:21,305 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 11:14:21,309 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 11:14:21,310 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 11:14:21,311 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 11:14:21,311 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 11:14:21,312 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 11:14:21,312 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 11:14:21,312 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 11:14:21,313 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 11:14:21,316 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 11:14:21,317 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 11:14:21,318 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 [2020-10-12 11:14:21,356 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 11:14:21,357 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 11:14:21,359 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 11:14:21,359 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 11:14:21,359 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 11:14:21,360 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 11:14:21,360 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 11:14:21,360 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 11:14:21,360 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 11:14:21,360 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 11:14:21,361 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 11:14:21,362 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 11:14:21,362 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 11:14:21,362 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 11:14:21,363 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 11:14:21,363 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 11:14:21,363 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 11:14:21,363 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 11:14:21,363 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 11:14:21,364 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 11:14:21,364 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 11:14:21,364 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 11:14:21,364 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 11:14:21,365 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 11:14:21,365 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 11:14:21,365 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 11:14:21,365 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 11:14:21,365 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 11:14:21,365 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 11:14:21,366 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 -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 11:14:21,650 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 11:14:21,663 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 11:14:21,666 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 11:14:21,668 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 11:14:21,668 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 11:14:21,669 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label41.c [2020-10-12 11:14:21,731 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b5b3d639a/a42c0a9149c34760b64b807791e742b0/FLAG98a9d23c4 [2020-10-12 11:14:22,317 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 11:14:22,318 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem02_label41.c [2020-10-12 11:14:22,333 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b5b3d639a/a42c0a9149c34760b64b807791e742b0/FLAG98a9d23c4 [2020-10-12 11:14:22,583 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b5b3d639a/a42c0a9149c34760b64b807791e742b0 [2020-10-12 11:14:22,592 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 11:14:22,593 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 11:14:22,594 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 11:14:22,594 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 11:14:22,598 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 11:14:22,599 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 11:14:22" (1/1) ... [2020-10-12 11:14:22,602 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6df9f1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:14:22, skipping insertion in model container [2020-10-12 11:14:22,602 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 11:14:22" (1/1) ... [2020-10-12 11:14:22,610 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 11:14:22,655 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 11:14:23,094 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 11:14:23,108 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 11:14:23,320 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 11:14:23,336 INFO L208 MainTranslator]: Completed translation [2020-10-12 11:14:23,337 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:14:23 WrapperNode [2020-10-12 11:14:23,337 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 11:14:23,338 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 11:14:23,338 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 11:14:23,338 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 11:14:23,351 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:14:23" (1/1) ... [2020-10-12 11:14:23,352 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:14:23" (1/1) ... [2020-10-12 11:14:23,368 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:14:23" (1/1) ... [2020-10-12 11:14:23,369 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:14:23" (1/1) ... [2020-10-12 11:14:23,412 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:14:23" (1/1) ... [2020-10-12 11:14:23,443 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:14:23" (1/1) ... [2020-10-12 11:14:23,453 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:14:23" (1/1) ... [2020-10-12 11:14:23,476 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 11:14:23,477 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 11:14:23,477 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 11:14:23,477 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 11:14:23,478 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:14:23" (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 [2020-10-12 11:14:23,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 11:14:23,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 11:14:23,554 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-12 11:14:23,554 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 11:14:23,554 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-12 11:14:23,555 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 11:14:23,555 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 11:14:23,556 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-12 11:14:23,556 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 11:14:23,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 11:14:23,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 11:14:24,711 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 11:14:24,711 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-12 11:14:24,722 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 11:14:24 BoogieIcfgContainer [2020-10-12 11:14:24,723 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 11:14:24,725 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 11:14:24,725 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 11:14:24,728 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 11:14:24,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 11:14:22" (1/3) ... [2020-10-12 11:14:24,729 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41b4edca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 11:14:24, skipping insertion in model container [2020-10-12 11:14:24,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:14:23" (2/3) ... [2020-10-12 11:14:24,730 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41b4edca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 11:14:24, skipping insertion in model container [2020-10-12 11:14:24,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 11:14:24" (3/3) ... [2020-10-12 11:14:24,732 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label41.c [2020-10-12 11:14:24,742 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 11:14:24,750 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 11:14:24,764 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 11:14:24,790 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 11:14:24,790 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 11:14:24,790 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 11:14:24,791 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 11:14:24,791 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 11:14:24,791 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 11:14:24,791 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 11:14:24,791 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 11:14:24,815 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-10-12 11:14:24,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-10-12 11:14:24,827 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:14:24,828 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:14:24,829 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:14:24,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:14:24,835 INFO L82 PathProgramCache]: Analyzing trace with hash -1961179338, now seen corresponding path program 1 times [2020-10-12 11:14:24,843 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:14:24,844 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1502849833] [2020-10-12 11:14:24,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:14:25,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:14:25,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:14:25,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:14:26,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:14:26,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-10-12 11:14:26,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:14:26,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1427 [2020-10-12 11:14:26,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:14:26,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-12 11:14:26,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 11:14:26,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-12 11:14:26,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 11:14:26,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:14:26,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:14:26,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:14:27,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:14:27,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:14:27,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:14:27,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 11:14:27,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:14:27,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:14:27,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:14:27,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 11:14:27,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 11:14:27,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 11:14:27,118 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1502849833] [2020-10-12 11:14:27,120 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 11:14:27,120 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-12 11:14:27,121 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886556031] [2020-10-12 11:14:27,126 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 11:14:27,127 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:14:27,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 11:14:27,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-10-12 11:14:27,144 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 11 states. [2020-10-12 11:14:27,771 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 79 [2020-10-12 11:14:27,980 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 78 [2020-10-12 11:14:28,465 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 77 [2020-10-12 11:14:28,878 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 75 [2020-10-12 11:14:29,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:14:29,857 INFO L93 Difference]: Finished difference Result 536 states and 892 transitions. [2020-10-12 11:14:29,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-12 11:14:29,859 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 96 [2020-10-12 11:14:29,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:14:29,875 INFO L225 Difference]: With dead ends: 536 [2020-10-12 11:14:29,876 INFO L226 Difference]: Without dead ends: 236 [2020-10-12 11:14:29,883 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=113, Invalid=267, Unknown=0, NotChecked=0, Total=380 [2020-10-12 11:14:29,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2020-10-12 11:14:29,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 233. [2020-10-12 11:14:29,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2020-10-12 11:14:29,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 323 transitions. [2020-10-12 11:14:29,955 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 323 transitions. Word has length 96 [2020-10-12 11:14:29,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:14:29,955 INFO L479 AbstractCegarLoop]: Abstraction has 233 states and 323 transitions. [2020-10-12 11:14:29,956 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 11:14:29,956 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 323 transitions. [2020-10-12 11:14:29,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-10-12 11:14:29,962 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:14:29,962 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:14:29,962 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 11:14:29,963 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:14:29,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:14:29,963 INFO L82 PathProgramCache]: Analyzing trace with hash -263747545, now seen corresponding path program 1 times [2020-10-12 11:14:29,964 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:14:29,964 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [316653209] [2020-10-12 11:14:29,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:14:30,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:14:30,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:14:30,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:14:30,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:14:31,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:14:31,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-10-12 11:14:31,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 11:14:31,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1303 [2020-10-12 11:14:31,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:14:31,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 11:14:31,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-12 11:14:31,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-12 11:14:31,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:14:31,833 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 44 [2020-10-12 11:14:32,013 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 42 [2020-10-12 11:14:32,162 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 38 [2020-10-12 11:14:32,308 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 34 [2020-10-12 11:14:32,476 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 29 [2020-10-12 11:14:32,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:14:32,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:14:32,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:14:32,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:14:32,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:14:32,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:14:32,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 11:14:32,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:14:32,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:14:32,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:14:32,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:14:32,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:14:32,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:14:32,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:14:32,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:14:32,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:14:32,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 11:14:32,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:14:32,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 11:14:32,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:14:32,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:14:32,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:14:32,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 11:14:32,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:14:32,698 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 11:14:32,699 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [316653209] [2020-10-12 11:14:32,699 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:14:32,699 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-12 11:14:32,699 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542920996] [2020-10-12 11:14:32,701 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 11:14:32,702 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:14:32,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 11:14:32,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-10-12 11:14:32,703 INFO L87 Difference]: Start difference. First operand 233 states and 323 transitions. Second operand 12 states. [2020-10-12 11:14:32,985 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-12 11:14:33,373 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 102 [2020-10-12 11:14:34,042 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 56 [2020-10-12 11:14:34,274 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 99 [2020-10-12 11:14:34,489 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 53 [2020-10-12 11:14:34,709 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 96 [2020-10-12 11:14:35,016 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 50 [2020-10-12 11:14:35,227 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 91 [2020-10-12 11:14:35,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:14:35,841 INFO L93 Difference]: Finished difference Result 549 states and 794 transitions. [2020-10-12 11:14:35,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-12 11:14:35,842 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 105 [2020-10-12 11:14:35,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:14:35,845 INFO L225 Difference]: With dead ends: 549 [2020-10-12 11:14:35,846 INFO L226 Difference]: Without dead ends: 236 [2020-10-12 11:14:35,848 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=165, Invalid=341, Unknown=0, NotChecked=0, Total=506 [2020-10-12 11:14:35,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2020-10-12 11:14:35,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 233. [2020-10-12 11:14:35,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2020-10-12 11:14:35,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 308 transitions. [2020-10-12 11:14:35,867 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 308 transitions. Word has length 105 [2020-10-12 11:14:35,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:14:35,868 INFO L479 AbstractCegarLoop]: Abstraction has 233 states and 308 transitions. [2020-10-12 11:14:35,868 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 11:14:35,868 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 308 transitions. [2020-10-12 11:14:35,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-12 11:14:35,875 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:14:35,875 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:14:35,876 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 11:14:35,876 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:14:35,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:14:35,876 INFO L82 PathProgramCache]: Analyzing trace with hash -1953808737, now seen corresponding path program 1 times [2020-10-12 11:14:35,877 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:14:35,877 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1095175963] [2020-10-12 11:14:35,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:14:35,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:14:35,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:14:35,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:14:36,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:14:37,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:14:37,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-12 11:14:37,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 11:14:37,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1235 [2020-10-12 11:14:37,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:14:37,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 11:14:37,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-12 11:14:37,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-12 11:14:37,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:14:37,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:14:37,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:14:37,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:14:37,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:14:37,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:14:37,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:14:37,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 11:14:37,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:14:37,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:14:37,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:14:37,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:14:37,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:14:37,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:14:37,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:14:37,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:14:37,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:14:37,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 11:14:37,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:14:37,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 11:14:37,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:14:37,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:14:37,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:14:37,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 11:14:37,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:14:37,837 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 11:14:37,837 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1095175963] [2020-10-12 11:14:37,838 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:14:37,838 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-12 11:14:37,838 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058265217] [2020-10-12 11:14:37,839 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 11:14:37,839 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:14:37,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 11:14:37,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-10-12 11:14:37,840 INFO L87 Difference]: Start difference. First operand 233 states and 308 transitions. Second operand 12 states. [2020-10-12 11:14:39,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:14:39,615 INFO L93 Difference]: Finished difference Result 554 states and 772 transitions. [2020-10-12 11:14:39,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-12 11:14:39,616 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 109 [2020-10-12 11:14:39,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:14:39,621 INFO L225 Difference]: With dead ends: 554 [2020-10-12 11:14:39,621 INFO L226 Difference]: Without dead ends: 327 [2020-10-12 11:14:39,622 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=116, Invalid=226, Unknown=0, NotChecked=0, Total=342 [2020-10-12 11:14:39,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2020-10-12 11:14:39,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 318. [2020-10-12 11:14:39,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 318 states. [2020-10-12 11:14:39,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 397 transitions. [2020-10-12 11:14:39,645 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 397 transitions. Word has length 109 [2020-10-12 11:14:39,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:14:39,646 INFO L479 AbstractCegarLoop]: Abstraction has 318 states and 397 transitions. [2020-10-12 11:14:39,646 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 11:14:39,647 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 397 transitions. [2020-10-12 11:14:39,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-10-12 11:14:39,650 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:14:39,650 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:14:39,651 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 11:14:39,651 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:14:39,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:14:39,651 INFO L82 PathProgramCache]: Analyzing trace with hash -745323273, now seen corresponding path program 1 times [2020-10-12 11:14:39,651 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:14:39,652 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2041126018] [2020-10-12 11:14:39,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:14:39,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:14:39,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:14:39,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:14:40,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:14:40,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-12 11:14:40,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:14:40,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 320 [2020-10-12 11:14:40,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:14:40,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:14:40,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-10-12 11:14:40,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-10-12 11:14:40,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 11:14:40,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:14:40,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:14:40,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:14:40,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:14:40,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:14:40,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:14:40,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 11:14:40,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:14:40,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:14:40,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:14:40,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:14:40,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 11:14:40,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:14:40,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:14:40,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:14:40,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:14:40,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 11:14:40,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:14:40,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 11:14:40,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:14:40,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:14:40,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:14:40,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:14:40,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:14:40,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-12 11:14:40,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:14:40,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:14:40,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:14:40,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-12 11:14:40,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:14:40,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 11:14:40,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:14:40,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:14:40,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:14:40,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-12 11:14:40,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:14:40,301 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 30 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-12 11:14:40,301 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2041126018] [2020-10-12 11:14:40,301 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:14:40,301 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 11:14:40,302 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948734010] [2020-10-12 11:14:40,302 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 11:14:40,303 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:14:40,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 11:14:40,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 11:14:40,303 INFO L87 Difference]: Start difference. First operand 318 states and 397 transitions. Second operand 5 states. [2020-10-12 11:14:41,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:14:41,405 INFO L93 Difference]: Finished difference Result 724 states and 951 transitions. [2020-10-12 11:14:41,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 11:14:41,406 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 131 [2020-10-12 11:14:41,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:14:41,410 INFO L225 Difference]: With dead ends: 724 [2020-10-12 11:14:41,410 INFO L226 Difference]: Without dead ends: 323 [2020-10-12 11:14:41,412 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 11:14:41,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2020-10-12 11:14:41,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 318. [2020-10-12 11:14:41,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 318 states. [2020-10-12 11:14:41,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 395 transitions. [2020-10-12 11:14:41,434 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 395 transitions. Word has length 131 [2020-10-12 11:14:41,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:14:41,434 INFO L479 AbstractCegarLoop]: Abstraction has 318 states and 395 transitions. [2020-10-12 11:14:41,434 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 11:14:41,435 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 395 transitions. [2020-10-12 11:14:41,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-10-12 11:14:41,458 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:14:41,458 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:14:41,458 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 11:14:41,458 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:14:41,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:14:41,459 INFO L82 PathProgramCache]: Analyzing trace with hash 797606326, now seen corresponding path program 1 times [2020-10-12 11:14:41,459 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:14:41,459 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1931551689] [2020-10-12 11:14:41,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:14:41,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:14:41,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:14:41,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:14:41,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:14:42,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:14:42,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 140 [2020-10-12 11:14:42,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 11:14:42,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1091 [2020-10-12 11:14:42,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:14:42,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 11:14:42,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 44 [2020-10-12 11:14:42,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-12 11:14:42,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:14:43,124 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 46 [2020-10-12 11:14:43,329 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 46 [2020-10-12 11:14:43,530 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 47 [2020-10-12 11:14:43,714 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 43 [2020-10-12 11:14:43,899 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 39 [2020-10-12 11:14:44,039 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 35 [2020-10-12 11:14:44,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:14:44,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:14:44,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:14:44,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:14:44,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:14:44,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:14:44,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:14:44,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:14:44,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:14:44,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:14:44,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:14:44,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-12 11:14:44,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:14:44,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:14:44,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:14:44,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:14:44,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-12 11:14:44,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:14:44,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-12 11:14:44,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:14:44,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:14:44,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:14:44,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-12 11:14:44,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:14:44,376 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 30 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 11:14:44,377 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1931551689] [2020-10-12 11:14:44,378 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:14:44,379 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-12 11:14:44,379 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862614706] [2020-10-12 11:14:44,379 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 11:14:44,380 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:14:44,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 11:14:44,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2020-10-12 11:14:44,380 INFO L87 Difference]: Start difference. First operand 318 states and 395 transitions. Second operand 12 states. [2020-10-12 11:14:44,853 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-12 11:14:45,097 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 104 [2020-10-12 11:14:45,410 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 101 [2020-10-12 11:14:46,013 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 98 [2020-10-12 11:14:46,723 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 92 [2020-10-12 11:14:47,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:14:47,100 INFO L93 Difference]: Finished difference Result 723 states and 948 transitions. [2020-10-12 11:14:47,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-12 11:14:47,101 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 130 [2020-10-12 11:14:47,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:14:47,105 INFO L225 Difference]: With dead ends: 723 [2020-10-12 11:14:47,105 INFO L226 Difference]: Without dead ends: 401 [2020-10-12 11:14:47,107 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=109, Invalid=233, Unknown=0, NotChecked=0, Total=342 [2020-10-12 11:14:47,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2020-10-12 11:14:47,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 394. [2020-10-12 11:14:47,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2020-10-12 11:14:47,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 475 transitions. [2020-10-12 11:14:47,137 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 475 transitions. Word has length 130 [2020-10-12 11:14:47,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:14:47,139 INFO L479 AbstractCegarLoop]: Abstraction has 394 states and 475 transitions. [2020-10-12 11:14:47,139 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 11:14:47,139 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 475 transitions. [2020-10-12 11:14:47,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-10-12 11:14:47,142 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:14:47,142 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:14:47,142 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 11:14:47,143 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:14:47,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:14:47,143 INFO L82 PathProgramCache]: Analyzing trace with hash -417301807, now seen corresponding path program 1 times [2020-10-12 11:14:47,143 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:14:47,144 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1148678799] [2020-10-12 11:14:47,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:14:47,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:14:47,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:14:47,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:14:47,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:14:47,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-12 11:14:47,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:14:47,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 424 [2020-10-12 11:14:47,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:14:47,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:14:47,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 54 [2020-10-12 11:14:47,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-12 11:14:47,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:14:47,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:14:47,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:14:47,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:14:47,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:14:47,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:14:47,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:14:47,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:14:47,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:14:47,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:14:47,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:14:47,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:14:47,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:14:47,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:14:47,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:14:47,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:14:47,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:14:47,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-12 11:14:47,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:14:47,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 11:14:47,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:14:47,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:14:47,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:14:47,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:14:47,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:14:47,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-12 11:14:47,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:14:47,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:14:47,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:14:47,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 11:14:47,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:14:47,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 11:14:47,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:14:47,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:14:47,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:14:47,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-12 11:14:47,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:14:48,019 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 37 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-12 11:14:48,020 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1148678799] [2020-10-12 11:14:48,022 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:14:48,022 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 11:14:48,023 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393828913] [2020-10-12 11:14:48,024 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 11:14:48,024 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:14:48,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 11:14:48,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 11:14:48,025 INFO L87 Difference]: Start difference. First operand 394 states and 475 transitions. Second operand 5 states. [2020-10-12 11:14:49,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:14:49,438 INFO L93 Difference]: Finished difference Result 874 states and 1106 transitions. [2020-10-12 11:14:49,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 11:14:49,438 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 138 [2020-10-12 11:14:49,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:14:49,441 INFO L225 Difference]: With dead ends: 874 [2020-10-12 11:14:49,441 INFO L226 Difference]: Without dead ends: 399 [2020-10-12 11:14:49,442 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 11:14:49,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2020-10-12 11:14:49,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 394. [2020-10-12 11:14:49,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2020-10-12 11:14:49,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 472 transitions. [2020-10-12 11:14:49,463 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 472 transitions. Word has length 138 [2020-10-12 11:14:49,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:14:49,464 INFO L479 AbstractCegarLoop]: Abstraction has 394 states and 472 transitions. [2020-10-12 11:14:49,464 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 11:14:49,464 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 472 transitions. [2020-10-12 11:14:49,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-10-12 11:14:49,466 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:14:49,467 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:14:49,467 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 11:14:49,467 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:14:49,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:14:49,467 INFO L82 PathProgramCache]: Analyzing trace with hash 662369548, now seen corresponding path program 1 times [2020-10-12 11:14:49,468 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:14:49,468 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1977429654] [2020-10-12 11:14:49,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:14:49,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:14:49,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:14:49,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:14:49,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:14:50,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:14:50,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 157 [2020-10-12 11:14:50,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 11:14:50,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1031 [2020-10-12 11:14:50,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:14:50,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 11:14:50,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 61 [2020-10-12 11:14:50,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-12 11:14:50,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:14:50,973 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 47 [2020-10-12 11:14:51,139 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 47 [2020-10-12 11:14:51,337 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 48 [2020-10-12 11:14:51,540 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 44 [2020-10-12 11:14:51,743 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 40 [2020-10-12 11:14:51,928 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 34 [2020-10-12 11:14:51,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:14:51,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:14:51,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:14:51,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:14:51,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:14:51,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:14:51,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 11:14:51,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:14:51,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:14:51,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:14:51,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:14:51,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:14:52,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:14:52,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:14:52,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:14:52,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:14:52,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-12 11:14:52,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:14:52,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-12 11:14:52,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:14:52,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:14:52,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:14:52,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-12 11:14:52,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:14:52,348 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 47 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 11:14:52,348 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1977429654] [2020-10-12 11:14:52,348 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:14:52,349 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-12 11:14:52,349 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059275431] [2020-10-12 11:14:52,350 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 11:14:52,350 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:14:52,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 11:14:52,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-10-12 11:14:52,351 INFO L87 Difference]: Start difference. First operand 394 states and 472 transitions. Second operand 12 states. [2020-10-12 11:14:53,017 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-12 11:14:53,901 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 106 [2020-10-12 11:14:54,246 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 103 [2020-10-12 11:14:54,532 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-12 11:14:54,990 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 100 [2020-10-12 11:14:55,650 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 95 [2020-10-12 11:14:56,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:14:56,248 INFO L93 Difference]: Finished difference Result 886 states and 1110 transitions. [2020-10-12 11:14:56,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-12 11:14:56,249 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 147 [2020-10-12 11:14:56,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:14:56,252 INFO L225 Difference]: With dead ends: 886 [2020-10-12 11:14:56,252 INFO L226 Difference]: Without dead ends: 498 [2020-10-12 11:14:56,253 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=155, Invalid=307, Unknown=0, NotChecked=0, Total=462 [2020-10-12 11:14:56,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2020-10-12 11:14:56,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 477. [2020-10-12 11:14:56,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 477 states. [2020-10-12 11:14:56,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 561 transitions. [2020-10-12 11:14:56,275 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 561 transitions. Word has length 147 [2020-10-12 11:14:56,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:14:56,276 INFO L479 AbstractCegarLoop]: Abstraction has 477 states and 561 transitions. [2020-10-12 11:14:56,276 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 11:14:56,276 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 561 transitions. [2020-10-12 11:14:56,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-10-12 11:14:56,278 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:14:56,279 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:14:56,279 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 11:14:56,279 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:14:56,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:14:56,279 INFO L82 PathProgramCache]: Analyzing trace with hash 1660737696, now seen corresponding path program 1 times [2020-10-12 11:14:56,280 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:14:56,280 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1677912912] [2020-10-12 11:14:56,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:14:56,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:14:56,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:14:56,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:14:56,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:14:57,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:14:57,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-12 11:14:57,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 11:14:57,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1088 [2020-10-12 11:14:57,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:14:57,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 11:14:57,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-12 11:14:57,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-12 11:14:57,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:14:57,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:14:57,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:14:57,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:14:57,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:14:57,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:14:57,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:14:57,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 11:14:57,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:14:57,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:14:57,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:14:57,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:14:57,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:14:57,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:14:57,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:14:57,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:14:57,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:14:57,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-12 11:14:57,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:14:57,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-12 11:14:57,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:14:57,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:14:57,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:14:57,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-12 11:14:57,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:14:57,941 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 53 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 11:14:57,941 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1677912912] [2020-10-12 11:14:57,942 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:14:57,942 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-12 11:14:57,942 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690102853] [2020-10-12 11:14:57,943 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 11:14:57,943 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:14:57,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 11:14:57,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-10-12 11:14:57,944 INFO L87 Difference]: Start difference. First operand 477 states and 561 transitions. Second operand 12 states. [2020-10-12 11:14:59,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:14:59,668 INFO L93 Difference]: Finished difference Result 1040 states and 1272 transitions. [2020-10-12 11:14:59,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-12 11:14:59,669 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 153 [2020-10-12 11:14:59,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:14:59,672 INFO L225 Difference]: With dead ends: 1040 [2020-10-12 11:14:59,672 INFO L226 Difference]: Without dead ends: 569 [2020-10-12 11:14:59,674 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=128, Invalid=252, Unknown=0, NotChecked=0, Total=380 [2020-10-12 11:14:59,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states. [2020-10-12 11:14:59,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 556. [2020-10-12 11:14:59,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 556 states. [2020-10-12 11:14:59,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 645 transitions. [2020-10-12 11:14:59,693 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 645 transitions. Word has length 153 [2020-10-12 11:14:59,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:14:59,693 INFO L479 AbstractCegarLoop]: Abstraction has 556 states and 645 transitions. [2020-10-12 11:14:59,693 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 11:14:59,693 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 645 transitions. [2020-10-12 11:14:59,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-10-12 11:14:59,696 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:14:59,696 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:14:59,696 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 11:14:59,697 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:14:59,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:14:59,697 INFO L82 PathProgramCache]: Analyzing trace with hash -974005526, now seen corresponding path program 1 times [2020-10-12 11:14:59,697 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:14:59,698 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1664330915] [2020-10-12 11:14:59,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:14:59,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:14:59,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:14:59,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:00,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:00,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 190 [2020-10-12 11:15:00,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:15:00,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 436 [2020-10-12 11:15:00,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:00,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:15:00,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-10-12 11:15:00,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-12 11:15:00,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:00,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:15:00,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:00,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:00,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:00,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:15:00,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:15:00,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:15:00,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:00,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:15:00,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:15:00,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:15:00,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 11:15:00,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:15:00,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:00,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:00,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:00,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 11:15:00,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:15:00,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:15:00,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:00,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:15:00,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:15:00,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:15:00,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:00,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-12 11:15:00,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:00,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:00,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:00,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-12 11:15:00,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:15:00,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-12 11:15:00,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:00,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:15:00,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:15:00,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-12 11:15:00,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:00,387 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 77 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-12 11:15:00,388 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1664330915] [2020-10-12 11:15:00,388 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:15:00,388 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-12 11:15:00,389 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853806145] [2020-10-12 11:15:00,389 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 11:15:00,389 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:15:00,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 11:15:00,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-12 11:15:00,390 INFO L87 Difference]: Start difference. First operand 556 states and 645 transitions. Second operand 6 states. [2020-10-12 11:15:01,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:15:01,851 INFO L93 Difference]: Finished difference Result 1510 states and 1864 transitions. [2020-10-12 11:15:01,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 11:15:01,853 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 178 [2020-10-12 11:15:01,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:15:01,858 INFO L225 Difference]: With dead ends: 1510 [2020-10-12 11:15:01,858 INFO L226 Difference]: Without dead ends: 960 [2020-10-12 11:15:01,860 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-12 11:15:01,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 960 states. [2020-10-12 11:15:01,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 960 to 943. [2020-10-12 11:15:01,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 943 states. [2020-10-12 11:15:01,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 943 states to 943 states and 1154 transitions. [2020-10-12 11:15:01,891 INFO L78 Accepts]: Start accepts. Automaton has 943 states and 1154 transitions. Word has length 178 [2020-10-12 11:15:01,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:15:01,891 INFO L479 AbstractCegarLoop]: Abstraction has 943 states and 1154 transitions. [2020-10-12 11:15:01,891 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 11:15:01,891 INFO L276 IsEmpty]: Start isEmpty. Operand 943 states and 1154 transitions. [2020-10-12 11:15:01,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2020-10-12 11:15:01,895 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:15:01,895 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:15:01,896 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-12 11:15:01,896 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:15:01,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:15:01,896 INFO L82 PathProgramCache]: Analyzing trace with hash 948309057, now seen corresponding path program 1 times [2020-10-12 11:15:01,896 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:15:01,897 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [339130629] [2020-10-12 11:15:01,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:15:01,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:01,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:02,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:02,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:02,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:05,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:06,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:06,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 202 [2020-10-12 11:15:06,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 11:15:06,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-12 11:15:06,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:06,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 11:15:06,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 106 [2020-10-12 11:15:06,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-12 11:15:06,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:07,282 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 39 [2020-10-12 11:15:07,409 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 35 [2020-10-12 11:15:07,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:15:07,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:07,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:07,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:07,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:15:07,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:15:07,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:15:07,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:07,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:15:07,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:15:07,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:15:07,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:07,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:15:07,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:07,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:07,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:07,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 11:15:07,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:15:07,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:15:07,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:07,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:15:07,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:15:07,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:15:07,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:07,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-12 11:15:07,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:07,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:07,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:07,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-12 11:15:07,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:15:07,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 11:15:07,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:07,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:15:07,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:15:07,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:15:07,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:07,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-12 11:15:07,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:07,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:07,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:07,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 11:15:07,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:15:07,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 11:15:07,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:07,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:15:07,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:15:07,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 11:15:07,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:07,869 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 86 proven. 3 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2020-10-12 11:15:07,869 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [339130629] [2020-10-12 11:15:07,870 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:15:07,870 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-12 11:15:07,870 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186231673] [2020-10-12 11:15:07,870 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 11:15:07,871 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:15:07,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 11:15:07,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-10-12 11:15:07,871 INFO L87 Difference]: Start difference. First operand 943 states and 1154 transitions. Second operand 12 states. [2020-10-12 11:15:09,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:15:09,759 INFO L93 Difference]: Finished difference Result 1952 states and 2443 transitions. [2020-10-12 11:15:09,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-12 11:15:09,762 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 188 [2020-10-12 11:15:09,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:15:09,769 INFO L225 Difference]: With dead ends: 1952 [2020-10-12 11:15:09,769 INFO L226 Difference]: Without dead ends: 1015 [2020-10-12 11:15:09,777 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=105, Invalid=201, Unknown=0, NotChecked=0, Total=306 [2020-10-12 11:15:09,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1015 states. [2020-10-12 11:15:09,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1015 to 1010. [2020-10-12 11:15:09,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1010 states. [2020-10-12 11:15:09,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1010 states to 1010 states and 1230 transitions. [2020-10-12 11:15:09,820 INFO L78 Accepts]: Start accepts. Automaton has 1010 states and 1230 transitions. Word has length 188 [2020-10-12 11:15:09,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:15:09,821 INFO L479 AbstractCegarLoop]: Abstraction has 1010 states and 1230 transitions. [2020-10-12 11:15:09,821 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 11:15:09,821 INFO L276 IsEmpty]: Start isEmpty. Operand 1010 states and 1230 transitions. [2020-10-12 11:15:09,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-10-12 11:15:09,825 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:15:09,825 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:15:09,825 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-12 11:15:09,825 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:15:09,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:15:09,826 INFO L82 PathProgramCache]: Analyzing trace with hash -156363940, now seen corresponding path program 1 times [2020-10-12 11:15:09,826 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:15:09,826 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1396206247] [2020-10-12 11:15:09,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:15:09,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:09,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:09,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:10,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:11,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:11,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:11,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-10-12 11:15:11,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 11:15:11,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1701 [2020-10-12 11:15:11,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:11,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 11:15:11,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 105 [2020-10-12 11:15:11,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-12 11:15:11,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:12,053 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 46 [2020-10-12 11:15:12,224 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 43 [2020-10-12 11:15:12,383 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 39 [2020-10-12 11:15:12,527 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 35 [2020-10-12 11:15:12,656 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 30 [2020-10-12 11:15:12,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:15:12,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:12,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:12,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:12,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:15:12,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:15:12,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:15:12,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:12,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:15:12,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:15:12,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:15:12,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:12,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:15:12,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:12,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:12,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:12,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-12 11:15:12,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:15:12,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 11:15:12,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:12,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:15:12,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:15:12,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:15:12,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:12,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-12 11:15:12,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:12,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:12,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:12,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-12 11:15:12,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:15:12,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-12 11:15:12,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:12,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:15:12,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:15:12,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-12 11:15:12,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:12,926 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 88 proven. 2 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2020-10-12 11:15:12,927 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1396206247] [2020-10-12 11:15:12,927 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:15:12,927 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-12 11:15:12,927 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098157792] [2020-10-12 11:15:12,928 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 11:15:12,928 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:15:12,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 11:15:12,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2020-10-12 11:15:12,928 INFO L87 Difference]: Start difference. First operand 1010 states and 1230 transitions. Second operand 12 states. [2020-10-12 11:15:13,614 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-12 11:15:14,026 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 102 [2020-10-12 11:15:14,371 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 99 [2020-10-12 11:15:14,794 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 96 [2020-10-12 11:15:15,064 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 91 [2020-10-12 11:15:15,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:15:15,775 INFO L93 Difference]: Finished difference Result 2104 states and 2619 transitions. [2020-10-12 11:15:15,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-12 11:15:15,780 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 189 [2020-10-12 11:15:15,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:15:15,786 INFO L225 Difference]: With dead ends: 2104 [2020-10-12 11:15:15,786 INFO L226 Difference]: Without dead ends: 1100 [2020-10-12 11:15:15,789 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=116, Invalid=264, Unknown=0, NotChecked=0, Total=380 [2020-10-12 11:15:15,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1100 states. [2020-10-12 11:15:15,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1100 to 1087. [2020-10-12 11:15:15,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1087 states. [2020-10-12 11:15:15,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1087 states to 1087 states and 1312 transitions. [2020-10-12 11:15:15,822 INFO L78 Accepts]: Start accepts. Automaton has 1087 states and 1312 transitions. Word has length 189 [2020-10-12 11:15:15,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:15:15,823 INFO L479 AbstractCegarLoop]: Abstraction has 1087 states and 1312 transitions. [2020-10-12 11:15:15,823 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 11:15:15,823 INFO L276 IsEmpty]: Start isEmpty. Operand 1087 states and 1312 transitions. [2020-10-12 11:15:15,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2020-10-12 11:15:15,827 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:15:15,827 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:15:15,827 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-12 11:15:15,827 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:15:15,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:15:15,828 INFO L82 PathProgramCache]: Analyzing trace with hash 1440761767, now seen corresponding path program 1 times [2020-10-12 11:15:15,828 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:15:15,828 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [891106919] [2020-10-12 11:15:15,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:15:15,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:15,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:15,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:16,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:16,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:17,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:17,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 207 [2020-10-12 11:15:17,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 11:15:17,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1518 [2020-10-12 11:15:17,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:17,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 11:15:17,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 11:15:17,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-12 11:15:17,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:17,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:15:17,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:17,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:17,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:17,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:15:17,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:15:17,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 11:15:17,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:17,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:15:17,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:15:17,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 11:15:17,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:17,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:15:17,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:17,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:17,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:17,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:17,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 11:15:17,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:15:17,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 11:15:17,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:17,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:15:17,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:15:17,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-12 11:15:17,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:17,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-12 11:15:17,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:17,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:17,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:17,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:17,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-12 11:15:17,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:15:17,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-10-12 11:15:17,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:17,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:15:17,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:15:17,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-12 11:15:17,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 11:15:17,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-12 11:15:17,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:17,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:17,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:17,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 11:15:17,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:15:17,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-12 11:15:17,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:17,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:15:17,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:15:17,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-12 11:15:17,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:17,806 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 98 proven. 18 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-10-12 11:15:17,808 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [891106919] [2020-10-12 11:15:17,808 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:15:17,808 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-12 11:15:17,809 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043018422] [2020-10-12 11:15:17,810 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-12 11:15:17,811 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:15:17,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-12 11:15:17,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-10-12 11:15:17,812 INFO L87 Difference]: Start difference. First operand 1087 states and 1312 transitions. Second operand 9 states. [2020-10-12 11:15:19,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:15:19,153 INFO L93 Difference]: Finished difference Result 2699 states and 3580 transitions. [2020-10-12 11:15:19,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-12 11:15:19,153 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 193 [2020-10-12 11:15:19,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:15:19,165 INFO L225 Difference]: With dead ends: 2699 [2020-10-12 11:15:19,165 INFO L226 Difference]: Without dead ends: 1618 [2020-10-12 11:15:19,169 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2020-10-12 11:15:19,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1618 states. [2020-10-12 11:15:19,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1618 to 1533. [2020-10-12 11:15:19,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1533 states. [2020-10-12 11:15:19,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1533 states to 1533 states and 1922 transitions. [2020-10-12 11:15:19,221 INFO L78 Accepts]: Start accepts. Automaton has 1533 states and 1922 transitions. Word has length 193 [2020-10-12 11:15:19,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:15:19,222 INFO L479 AbstractCegarLoop]: Abstraction has 1533 states and 1922 transitions. [2020-10-12 11:15:19,222 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-12 11:15:19,222 INFO L276 IsEmpty]: Start isEmpty. Operand 1533 states and 1922 transitions. [2020-10-12 11:15:19,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-10-12 11:15:19,227 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:15:19,227 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:15:19,228 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-12 11:15:19,228 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:15:19,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:15:19,228 INFO L82 PathProgramCache]: Analyzing trace with hash -1522580837, now seen corresponding path program 1 times [2020-10-12 11:15:19,228 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:15:19,228 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1159199982] [2020-10-12 11:15:19,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:15:19,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:19,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:19,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:19,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:19,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:19,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:19,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:20,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:21,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:21,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 213 [2020-10-12 11:15:21,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-12 11:15:21,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1873 [2020-10-12 11:15:21,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:21,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 11:15:21,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 11:15:21,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-12 11:15:21,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:21,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:15:21,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:21,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:21,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:21,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:15:21,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:15:21,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 11:15:21,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:21,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:15:21,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:15:21,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 11:15:21,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:21,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:15:21,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:21,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:21,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:21,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:21,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 11:15:21,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:15:21,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 11:15:21,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:21,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:15:21,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:15:21,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-12 11:15:21,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:21,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-12 11:15:21,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:21,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:21,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:21,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:21,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-12 11:15:21,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:15:21,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-12 11:15:21,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:21,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:15:21,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:15:21,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-12 11:15:21,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:21,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-12 11:15:21,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:21,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:21,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:21,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:21,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 11:15:21,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:15:21,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 11:15:21,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:21,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:15:21,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:15:21,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-12 11:15:21,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:21,481 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 94 proven. 18 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-10-12 11:15:21,482 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1159199982] [2020-10-12 11:15:21,482 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:15:21,482 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 11:15:21,482 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78605900] [2020-10-12 11:15:21,483 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 11:15:21,483 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:15:21,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 11:15:21,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-12 11:15:21,484 INFO L87 Difference]: Start difference. First operand 1533 states and 1922 transitions. Second operand 8 states. [2020-10-12 11:15:22,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:15:22,807 INFO L93 Difference]: Finished difference Result 3814 states and 4981 transitions. [2020-10-12 11:15:22,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-12 11:15:22,808 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 199 [2020-10-12 11:15:22,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:15:22,819 INFO L225 Difference]: With dead ends: 3814 [2020-10-12 11:15:22,819 INFO L226 Difference]: Without dead ends: 2287 [2020-10-12 11:15:22,823 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2020-10-12 11:15:22,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2287 states. [2020-10-12 11:15:22,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2287 to 2280. [2020-10-12 11:15:22,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2280 states. [2020-10-12 11:15:22,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2280 states to 2280 states and 2885 transitions. [2020-10-12 11:15:22,893 INFO L78 Accepts]: Start accepts. Automaton has 2280 states and 2885 transitions. Word has length 199 [2020-10-12 11:15:22,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:15:22,894 INFO L479 AbstractCegarLoop]: Abstraction has 2280 states and 2885 transitions. [2020-10-12 11:15:22,894 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 11:15:22,894 INFO L276 IsEmpty]: Start isEmpty. Operand 2280 states and 2885 transitions. [2020-10-12 11:15:22,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2020-10-12 11:15:22,902 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:15:22,902 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:15:22,903 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-12 11:15:22,903 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:15:22,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:15:22,903 INFO L82 PathProgramCache]: Analyzing trace with hash 608624718, now seen corresponding path program 1 times [2020-10-12 11:15:22,903 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:15:22,904 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1669561642] [2020-10-12 11:15:22,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:15:22,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:22,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:23,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:23,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:23,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 214 [2020-10-12 11:15:23,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:15:23,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 536 [2020-10-12 11:15:23,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:23,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:15:23,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 118 [2020-10-12 11:15:23,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-12 11:15:23,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 11:15:23,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:15:23,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:23,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:23,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:23,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:15:23,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:15:23,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:15:23,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:23,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:15:23,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:15:23,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:15:23,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:23,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:15:23,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:23,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:23,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:23,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-12 11:15:23,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:15:23,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 11:15:23,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:23,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:15:23,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:15:23,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:15:23,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:23,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-12 11:15:23,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:23,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:23,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:23,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-12 11:15:23,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:15:23,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-12 11:15:23,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:23,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:15:23,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:15:23,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-12 11:15:23,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:23,890 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 101 proven. 2 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-10-12 11:15:23,891 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1669561642] [2020-10-12 11:15:23,891 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:15:23,891 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 11:15:23,891 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225495452] [2020-10-12 11:15:23,892 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 11:15:23,892 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:15:23,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 11:15:23,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 11:15:23,892 INFO L87 Difference]: Start difference. First operand 2280 states and 2885 transitions. Second operand 5 states. [2020-10-12 11:15:25,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:15:25,008 INFO L93 Difference]: Finished difference Result 4645 states and 5959 transitions. [2020-10-12 11:15:25,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 11:15:25,008 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 202 [2020-10-12 11:15:25,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:15:25,017 INFO L225 Difference]: With dead ends: 4645 [2020-10-12 11:15:25,018 INFO L226 Difference]: Without dead ends: 2207 [2020-10-12 11:15:25,023 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 11:15:25,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2207 states. [2020-10-12 11:15:25,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2207 to 2202. [2020-10-12 11:15:25,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2202 states. [2020-10-12 11:15:25,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2202 states to 2202 states and 2761 transitions. [2020-10-12 11:15:25,078 INFO L78 Accepts]: Start accepts. Automaton has 2202 states and 2761 transitions. Word has length 202 [2020-10-12 11:15:25,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:15:25,078 INFO L479 AbstractCegarLoop]: Abstraction has 2202 states and 2761 transitions. [2020-10-12 11:15:25,078 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 11:15:25,079 INFO L276 IsEmpty]: Start isEmpty. Operand 2202 states and 2761 transitions. [2020-10-12 11:15:25,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2020-10-12 11:15:25,084 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:15:25,084 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:15:25,085 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-12 11:15:25,085 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:15:25,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:15:25,085 INFO L82 PathProgramCache]: Analyzing trace with hash -307005087, now seen corresponding path program 1 times [2020-10-12 11:15:25,085 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:15:25,086 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2137187342] [2020-10-12 11:15:25,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:15:25,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:25,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:25,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:25,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:25,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:25,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:25,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:26,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:26,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:27,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:27,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 223 [2020-10-12 11:15:27,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-12 11:15:27,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2298 [2020-10-12 11:15:27,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:27,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-12 11:15:27,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 11:15:27,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 207 [2020-10-12 11:15:27,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 11:15:28,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:15:28,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:28,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:28,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:28,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:15:28,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:15:28,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 11:15:28,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:28,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:15:28,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:15:28,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 11:15:28,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:28,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:15:28,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:28,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:28,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:28,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:28,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-12 11:15:28,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:15:28,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-10-12 11:15:28,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:28,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:15:28,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:15:28,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-12 11:15:28,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:28,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-12 11:15:28,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:28,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:28,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:28,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:28,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-12 11:15:28,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:15:28,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-12 11:15:28,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:28,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:15:28,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:15:28,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-12 11:15:28,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 11:15:28,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-12 11:15:28,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:28,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:28,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:28,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:28,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-12 11:15:28,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:15:28,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-12 11:15:28,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:28,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 11:15:28,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:15:28,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-12 11:15:28,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:29,058 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 105 proven. 45 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-12 11:15:29,058 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2137187342] [2020-10-12 11:15:29,058 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:15:29,058 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-10-12 11:15:29,059 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821774057] [2020-10-12 11:15:29,059 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-12 11:15:29,059 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:15:29,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-12 11:15:29,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=315, Unknown=0, NotChecked=0, Total=462 [2020-10-12 11:15:29,060 INFO L87 Difference]: Start difference. First operand 2202 states and 2761 transitions. Second operand 22 states. [2020-10-12 11:15:29,781 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2020-10-12 11:15:29,944 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2020-10-12 11:15:30,141 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 82 [2020-10-12 11:15:30,424 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 82 [2020-10-12 11:15:30,871 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 83 [2020-10-12 11:15:31,118 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 82 [2020-10-12 11:15:31,427 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 82 [2020-10-12 11:15:31,780 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 81 [2020-10-12 11:15:31,991 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2020-10-12 11:15:32,395 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 79 [2020-10-12 11:15:34,974 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 75 [2020-10-12 11:15:35,159 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2020-10-12 11:15:35,982 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 73 [2020-10-12 11:15:37,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:15:37,172 INFO L93 Difference]: Finished difference Result 6685 states and 8606 transitions. [2020-10-12 11:15:37,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2020-10-12 11:15:37,173 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 209 [2020-10-12 11:15:37,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:15:37,194 INFO L225 Difference]: With dead ends: 6685 [2020-10-12 11:15:37,195 INFO L226 Difference]: Without dead ends: 4471 [2020-10-12 11:15:37,203 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1043 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=1113, Invalid=2669, Unknown=0, NotChecked=0, Total=3782 [2020-10-12 11:15:37,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4471 states. [2020-10-12 11:15:37,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4471 to 3990. [2020-10-12 11:15:37,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3990 states. [2020-10-12 11:15:37,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3990 states to 3990 states and 4963 transitions. [2020-10-12 11:15:37,311 INFO L78 Accepts]: Start accepts. Automaton has 3990 states and 4963 transitions. Word has length 209 [2020-10-12 11:15:37,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:15:37,312 INFO L479 AbstractCegarLoop]: Abstraction has 3990 states and 4963 transitions. [2020-10-12 11:15:37,312 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-12 11:15:37,312 INFO L276 IsEmpty]: Start isEmpty. Operand 3990 states and 4963 transitions. [2020-10-12 11:15:37,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2020-10-12 11:15:37,320 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:15:37,321 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:15:37,321 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-12 11:15:37,321 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:15:37,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:15:37,322 INFO L82 PathProgramCache]: Analyzing trace with hash 746319480, now seen corresponding path program 1 times [2020-10-12 11:15:37,322 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:15:37,322 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [649197720] [2020-10-12 11:15:37,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:15:37,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:37,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:37,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:37,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:38,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:38,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 227 [2020-10-12 11:15:38,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 11:15:38,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 801 [2020-10-12 11:15:38,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:38,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:15:38,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 131 [2020-10-12 11:15:38,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-12 11:15:38,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:38,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:15:38,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:38,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:38,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:38,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:15:38,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:15:38,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:15:38,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:38,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:15:38,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:15:38,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:15:38,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:38,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:15:38,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:38,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:38,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:38,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 11:15:38,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:15:38,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:15:38,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:38,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:15:38,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:15:38,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:15:38,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:38,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-12 11:15:38,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:38,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:38,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:38,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-12 11:15:38,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:15:38,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 11:15:38,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:38,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:15:38,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:15:38,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:15:38,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:38,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-12 11:15:38,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:38,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:38,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:38,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-12 11:15:38,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:15:38,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 11:15:38,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:38,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:15:38,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:15:38,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-12 11:15:38,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:38,408 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 111 proven. 3 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2020-10-12 11:15:38,409 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [649197720] [2020-10-12 11:15:38,409 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:15:38,409 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 11:15:38,409 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664873553] [2020-10-12 11:15:38,410 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 11:15:38,410 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:15:38,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 11:15:38,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 11:15:38,411 INFO L87 Difference]: Start difference. First operand 3990 states and 4963 transitions. Second operand 5 states. [2020-10-12 11:15:39,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:15:39,442 INFO L93 Difference]: Finished difference Result 8067 states and 10094 transitions. [2020-10-12 11:15:39,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 11:15:39,442 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 213 [2020-10-12 11:15:39,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:15:39,458 INFO L225 Difference]: With dead ends: 8067 [2020-10-12 11:15:39,458 INFO L226 Difference]: Without dead ends: 3995 [2020-10-12 11:15:39,468 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 11:15:39,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3995 states. [2020-10-12 11:15:39,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3995 to 3986. [2020-10-12 11:15:39,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3986 states. [2020-10-12 11:15:39,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3986 states to 3986 states and 4885 transitions. [2020-10-12 11:15:39,558 INFO L78 Accepts]: Start accepts. Automaton has 3986 states and 4885 transitions. Word has length 213 [2020-10-12 11:15:39,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:15:39,559 INFO L479 AbstractCegarLoop]: Abstraction has 3986 states and 4885 transitions. [2020-10-12 11:15:39,559 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 11:15:39,559 INFO L276 IsEmpty]: Start isEmpty. Operand 3986 states and 4885 transitions. [2020-10-12 11:15:39,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2020-10-12 11:15:39,568 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:15:39,569 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:15:39,569 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-12 11:15:39,569 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:15:39,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:15:39,569 INFO L82 PathProgramCache]: Analyzing trace with hash 1412222986, now seen corresponding path program 1 times [2020-10-12 11:15:39,570 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:15:39,570 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [8456488] [2020-10-12 11:15:39,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:15:39,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:39,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:39,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:40,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:40,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:41,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:41,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 246 [2020-10-12 11:15:41,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 11:15:41,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1669 [2020-10-12 11:15:41,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:41,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:15:41,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-10-12 11:15:41,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-12 11:15:41,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:41,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:15:41,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:41,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:41,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:41,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:15:41,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:15:41,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:15:41,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:41,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:15:41,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:15:41,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:15:41,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:41,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:15:41,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:41,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:41,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:41,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 11:15:41,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:15:41,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:15:41,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:41,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:15:41,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:15:41,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:15:41,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:41,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-12 11:15:41,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:41,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:41,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:41,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-12 11:15:41,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:15:41,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 11:15:41,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:41,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:15:41,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:15:41,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:15:41,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:41,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-12 11:15:41,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:41,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:41,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:41,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-12 11:15:41,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:15:41,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 11:15:41,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:41,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:15:41,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:15:41,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-12 11:15:41,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:41,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 11:15:41,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:41,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:41,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:41,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-12 11:15:41,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:15:41,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 11:15:41,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:41,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:15:41,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:15:41,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-12 11:15:41,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:41,562 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 184 proven. 2 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2020-10-12 11:15:41,563 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [8456488] [2020-10-12 11:15:41,563 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:15:41,563 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 11:15:41,563 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647998379] [2020-10-12 11:15:41,564 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 11:15:41,564 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:15:41,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 11:15:41,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 11:15:41,565 INFO L87 Difference]: Start difference. First operand 3986 states and 4885 transitions. Second operand 7 states. [2020-10-12 11:15:43,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:15:43,062 INFO L93 Difference]: Finished difference Result 8463 states and 10534 transitions. [2020-10-12 11:15:43,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 11:15:43,068 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 230 [2020-10-12 11:15:43,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:15:43,085 INFO L225 Difference]: With dead ends: 8463 [2020-10-12 11:15:43,086 INFO L226 Difference]: Without dead ends: 4483 [2020-10-12 11:15:43,094 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-12 11:15:43,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4483 states. [2020-10-12 11:15:43,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4483 to 4442. [2020-10-12 11:15:43,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4442 states. [2020-10-12 11:15:43,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4442 states to 4442 states and 5425 transitions. [2020-10-12 11:15:43,196 INFO L78 Accepts]: Start accepts. Automaton has 4442 states and 5425 transitions. Word has length 230 [2020-10-12 11:15:43,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:15:43,196 INFO L479 AbstractCegarLoop]: Abstraction has 4442 states and 5425 transitions. [2020-10-12 11:15:43,196 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 11:15:43,197 INFO L276 IsEmpty]: Start isEmpty. Operand 4442 states and 5425 transitions. [2020-10-12 11:15:43,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2020-10-12 11:15:43,210 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:15:43,210 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:15:43,210 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-12 11:15:43,211 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:15:43,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:15:43,211 INFO L82 PathProgramCache]: Analyzing trace with hash -903825474, now seen corresponding path program 1 times [2020-10-12 11:15:43,211 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:15:43,212 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [174659885] [2020-10-12 11:15:43,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:15:43,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:43,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:43,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:43,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:44,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:45,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:45,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:45,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 252 [2020-10-12 11:15:45,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 11:15:45,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2593 [2020-10-12 11:15:45,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:45,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 11:15:45,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-10-12 11:15:45,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-12 11:15:45,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:45,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:15:45,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:45,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:45,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:45,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:15:45,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:15:45,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:15:45,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:45,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:15:45,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:15:45,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:15:45,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:45,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:15:45,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:45,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:45,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:45,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 11:15:45,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:15:45,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:15:45,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:45,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:15:45,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:15:45,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:15:45,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:45,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-12 11:15:45,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:45,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:45,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:45,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-12 11:15:45,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:15:45,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 11:15:45,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:45,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:15:45,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:15:45,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:15:45,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:45,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-12 11:15:45,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:45,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:46,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:46,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-12 11:15:46,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:15:46,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 11:15:46,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:46,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:15:46,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:15:46,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-12 11:15:46,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:46,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 11:15:46,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:46,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:46,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:46,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:46,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-12 11:15:46,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:15:46,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-12 11:15:46,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:46,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:15:46,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:15:46,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-12 11:15:46,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:46,126 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 169 proven. 29 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2020-10-12 11:15:46,127 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [174659885] [2020-10-12 11:15:46,127 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:15:46,127 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 11:15:46,127 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393165453] [2020-10-12 11:15:46,128 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 11:15:46,128 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:15:46,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 11:15:46,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 11:15:46,129 INFO L87 Difference]: Start difference. First operand 4442 states and 5425 transitions. Second operand 7 states. [2020-10-12 11:15:47,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:15:47,447 INFO L93 Difference]: Finished difference Result 9917 states and 12203 transitions. [2020-10-12 11:15:47,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 11:15:47,452 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 236 [2020-10-12 11:15:47,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:15:47,481 INFO L225 Difference]: With dead ends: 9917 [2020-10-12 11:15:47,481 INFO L226 Difference]: Without dead ends: 5481 [2020-10-12 11:15:47,491 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-12 11:15:47,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5481 states. [2020-10-12 11:15:47,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5481 to 4895. [2020-10-12 11:15:47,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4895 states. [2020-10-12 11:15:47,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4895 states to 4895 states and 5832 transitions. [2020-10-12 11:15:47,630 INFO L78 Accepts]: Start accepts. Automaton has 4895 states and 5832 transitions. Word has length 236 [2020-10-12 11:15:47,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:15:47,631 INFO L479 AbstractCegarLoop]: Abstraction has 4895 states and 5832 transitions. [2020-10-12 11:15:47,631 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 11:15:47,631 INFO L276 IsEmpty]: Start isEmpty. Operand 4895 states and 5832 transitions. [2020-10-12 11:15:47,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2020-10-12 11:15:47,645 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:15:47,646 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:15:47,646 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-12 11:15:47,646 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:15:47,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:15:47,647 INFO L82 PathProgramCache]: Analyzing trace with hash -1656909900, now seen corresponding path program 1 times [2020-10-12 11:15:47,647 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:15:47,647 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1492633310] [2020-10-12 11:15:47,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:15:47,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:47,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:47,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:48,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:48,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:49,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:49,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 253 [2020-10-12 11:15:49,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 11:15:49,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1629 [2020-10-12 11:15:49,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:49,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:15:49,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-10-12 11:15:49,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-12 11:15:49,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:49,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:15:49,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:49,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:49,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:49,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:15:49,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:15:49,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:15:49,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:49,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:15:49,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:15:49,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:15:49,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:49,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:15:49,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:49,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:49,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:49,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 11:15:49,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:15:49,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:15:49,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:49,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:15:49,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:15:49,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:15:49,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:49,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-12 11:15:49,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:49,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:49,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:49,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-12 11:15:49,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:15:49,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-12 11:15:49,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:49,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:15:49,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:15:49,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-12 11:15:49,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:49,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-12 11:15:49,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:49,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:49,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:49,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-12 11:15:49,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:15:49,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 11:15:49,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:49,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:15:49,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:15:49,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-12 11:15:49,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:49,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 11:15:49,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:49,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:49,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:49,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-12 11:15:49,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:15:49,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 11:15:49,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:49,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:15:49,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-12 11:15:49,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:15:49,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:49,597 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 177 proven. 27 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2020-10-12 11:15:49,597 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1492633310] [2020-10-12 11:15:49,598 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:15:49,598 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 11:15:49,598 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594556020] [2020-10-12 11:15:49,600 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 11:15:49,600 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:15:49,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 11:15:49,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 11:15:49,601 INFO L87 Difference]: Start difference. First operand 4895 states and 5832 transitions. Second operand 7 states. [2020-10-12 11:15:50,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:15:50,864 INFO L93 Difference]: Finished difference Result 10504 states and 12616 transitions. [2020-10-12 11:15:50,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 11:15:50,865 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 237 [2020-10-12 11:15:50,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:15:50,881 INFO L225 Difference]: With dead ends: 10504 [2020-10-12 11:15:50,882 INFO L226 Difference]: Without dead ends: 5615 [2020-10-12 11:15:50,891 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-12 11:15:50,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5615 states. [2020-10-12 11:15:50,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5615 to 5608. [2020-10-12 11:15:50,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5608 states. [2020-10-12 11:15:50,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5608 states to 5608 states and 6555 transitions. [2020-10-12 11:15:50,992 INFO L78 Accepts]: Start accepts. Automaton has 5608 states and 6555 transitions. Word has length 237 [2020-10-12 11:15:50,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:15:50,992 INFO L479 AbstractCegarLoop]: Abstraction has 5608 states and 6555 transitions. [2020-10-12 11:15:50,992 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 11:15:50,992 INFO L276 IsEmpty]: Start isEmpty. Operand 5608 states and 6555 transitions. [2020-10-12 11:15:50,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2020-10-12 11:15:51,000 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:15:51,000 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:15:51,000 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-12 11:15:51,000 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:15:51,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:15:51,001 INFO L82 PathProgramCache]: Analyzing trace with hash 1442220836, now seen corresponding path program 1 times [2020-10-12 11:15:51,001 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:15:51,001 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1465400520] [2020-10-12 11:15:51,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:15:51,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:51,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:51,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:51,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:51,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 269 [2020-10-12 11:15:51,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:15:51,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 303 [2020-10-12 11:15:51,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:51,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:15:51,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-12 11:15:51,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-12 11:15:51,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:51,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:15:51,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:51,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:51,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:51,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:15:51,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:15:51,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:15:51,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:51,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:15:51,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:15:51,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:15:51,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:51,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:15:51,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:51,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:51,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:51,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-12 11:15:51,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:15:51,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 11:15:51,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:51,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:15:51,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:15:51,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:15:51,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:51,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-12 11:15:51,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:51,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:51,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:51,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-12 11:15:51,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:15:51,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 11:15:51,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:51,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:15:51,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:15:51,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:15:51,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:51,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-12 11:15:51,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:51,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:51,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:51,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-12 11:15:51,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:15:51,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 11:15:51,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:51,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:15:51,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:15:51,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-12 11:15:51,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:51,608 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 153 proven. 3 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2020-10-12 11:15:51,608 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1465400520] [2020-10-12 11:15:51,609 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:15:51,609 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 11:15:51,609 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268946244] [2020-10-12 11:15:51,609 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 11:15:51,609 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:15:51,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 11:15:51,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 11:15:51,610 INFO L87 Difference]: Start difference. First operand 5608 states and 6555 transitions. Second operand 5 states. [2020-10-12 11:15:52,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:15:52,510 INFO L93 Difference]: Finished difference Result 11153 states and 13050 transitions. [2020-10-12 11:15:52,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 11:15:52,511 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 255 [2020-10-12 11:15:52,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:15:52,523 INFO L225 Difference]: With dead ends: 11153 [2020-10-12 11:15:52,524 INFO L226 Difference]: Without dead ends: 5463 [2020-10-12 11:15:52,619 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 11:15:52,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5463 states. [2020-10-12 11:15:52,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5463 to 5458. [2020-10-12 11:15:52,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5458 states. [2020-10-12 11:15:52,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5458 states to 5458 states and 6313 transitions. [2020-10-12 11:15:52,725 INFO L78 Accepts]: Start accepts. Automaton has 5458 states and 6313 transitions. Word has length 255 [2020-10-12 11:15:52,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:15:52,725 INFO L479 AbstractCegarLoop]: Abstraction has 5458 states and 6313 transitions. [2020-10-12 11:15:52,725 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 11:15:52,725 INFO L276 IsEmpty]: Start isEmpty. Operand 5458 states and 6313 transitions. [2020-10-12 11:15:52,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2020-10-12 11:15:52,733 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:15:52,734 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:15:52,734 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-12 11:15:52,734 INFO L427 AbstractCegarLoop]: === Iteration 21 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:15:52,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:15:52,734 INFO L82 PathProgramCache]: Analyzing trace with hash 332668937, now seen corresponding path program 1 times [2020-10-12 11:15:52,734 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:15:52,735 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1002840698] [2020-10-12 11:15:52,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:15:52,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:52,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:52,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:53,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:53,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:53,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:54,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:54,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 291 [2020-10-12 11:15:54,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 11:15:54,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1411 [2020-10-12 11:15:54,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:54,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 11:15:54,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-12 11:15:54,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 150 [2020-10-12 11:15:54,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:54,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:15:54,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:54,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:54,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:54,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:15:54,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:15:54,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 11:15:54,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:54,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:15:54,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:15:54,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:15:54,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:54,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:15:54,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:54,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:54,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:54,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-12 11:15:54,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:15:54,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 11:15:54,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:54,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:15:54,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:15:54,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:15:54,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:54,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-12 11:15:54,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:54,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:54,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:54,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-12 11:15:54,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:15:54,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-12 11:15:54,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:54,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:15:54,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:15:54,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-12 11:15:54,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:54,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-12 11:15:54,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:54,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:54,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:54,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 11:15:54,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:15:54,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-12 11:15:54,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:54,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:15:54,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:15:54,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-12 11:15:54,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:54,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-10-12 11:15:54,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:54,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:54,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:54,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-12 11:15:54,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:15:54,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-12 11:15:54,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:54,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:15:54,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:15:54,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-12 11:15:54,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:54,589 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 211 proven. 43 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2020-10-12 11:15:54,590 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1002840698] [2020-10-12 11:15:54,590 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:15:54,590 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-12 11:15:54,590 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145172287] [2020-10-12 11:15:54,591 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 11:15:54,591 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:15:54,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 11:15:54,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-12 11:15:54,592 INFO L87 Difference]: Start difference. First operand 5458 states and 6313 transitions. Second operand 6 states. [2020-10-12 11:15:55,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:15:55,532 INFO L93 Difference]: Finished difference Result 8607 states and 9812 transitions. [2020-10-12 11:15:55,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 11:15:55,532 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 275 [2020-10-12 11:15:55,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:15:55,533 INFO L225 Difference]: With dead ends: 8607 [2020-10-12 11:15:55,533 INFO L226 Difference]: Without dead ends: 0 [2020-10-12 11:15:55,547 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-12 11:15:55,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-12 11:15:55,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-12 11:15:55,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-12 11:15:55,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-12 11:15:55,548 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 275 [2020-10-12 11:15:55,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:15:55,549 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-12 11:15:55,549 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 11:15:55,549 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-12 11:15:55,549 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-12 11:15:55,549 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-12 11:15:55,552 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-12 11:15:57,276 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 336 DAG size of output: 263 [2020-10-12 11:15:57,897 WARN L193 SmtUtils]: Spent 617.00 ms on a formula simplification. DAG size of input: 315 DAG size of output: 223 [2020-10-12 11:16:00,124 WARN L193 SmtUtils]: Spent 2.08 s on a formula simplification. DAG size of input: 307 DAG size of output: 168 [2020-10-12 11:16:01,367 WARN L193 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 249 DAG size of output: 68 [2020-10-12 11:16:02,448 WARN L193 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 211 DAG size of output: 96 [2020-10-12 11:16:02,453 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-12 11:16:02,454 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a28~0 |old(~a28~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (= ~c~0 |old(~c~0)|) (= ~a25~0 |old(~a25~0)|) (= ~z~0 |old(~z~0)|) (= ~f~0 |old(~f~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a11~0 |old(~a11~0)|) (= ~w~0 |old(~w~0)|) (= ~a~0 |old(~a~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~x~0 |old(~x~0)|) (= ~d~0 |old(~d~0)|) (= ~y~0 |old(~y~0)|) (= ~v~0 |old(~v~0)|)) [2020-10-12 11:16:02,454 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-12 11:16:02,454 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:16:02,455 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:16:02,455 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:16:02,455 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:16:02,455 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:16:02,455 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-10-12 11:16:02,456 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-10-12 11:16:02,456 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-10-12 11:16:02,456 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-10-12 11:16:02,456 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-10-12 11:16:02,456 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-10-12 11:16:02,456 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-10-12 11:16:02,457 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-10-12 11:16:02,457 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-10-12 11:16:02,457 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-10-12 11:16:02,457 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-10-12 11:16:02,457 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-10-12 11:16:02,457 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-10-12 11:16:02,457 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:16:02,457 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:16:02,457 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:16:02,457 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:16:02,458 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-10-12 11:16:02,458 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:16:02,458 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-10-12 11:16:02,458 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-10-12 11:16:02,458 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-10-12 11:16:02,458 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-10-12 11:16:02,458 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-10-12 11:16:02,458 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-10-12 11:16:02,459 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-10-12 11:16:02,459 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-10-12 11:16:02,459 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-10-12 11:16:02,459 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-10-12 11:16:02,459 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-10-12 11:16:02,459 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-10-12 11:16:02,459 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-10-12 11:16:02,459 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-10-12 11:16:02,460 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-10-12 11:16:02,460 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:16:02,460 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:16:02,460 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:16:02,460 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:16:02,460 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:16:02,460 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 442) no Hoare annotation was computed. [2020-10-12 11:16:02,461 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-10-12 11:16:02,461 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-10-12 11:16:02,461 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-10-12 11:16:02,461 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-10-12 11:16:02,461 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-10-12 11:16:02,461 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-10-12 11:16:02,461 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-10-12 11:16:02,462 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-10-12 11:16:02,462 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-10-12 11:16:02,462 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-10-12 11:16:02,462 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-10-12 11:16:02,462 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:16:02,462 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:16:02,462 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:16:02,462 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:16:02,462 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:16:02,463 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-10-12 11:16:02,463 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-10-12 11:16:02,463 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-10-12 11:16:02,463 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-10-12 11:16:02,463 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-10-12 11:16:02,463 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-10-12 11:16:02,463 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-10-12 11:16:02,463 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-10-12 11:16:02,464 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-10-12 11:16:02,464 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-10-12 11:16:02,464 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-10-12 11:16:02,464 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-10-12 11:16:02,464 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-10-12 11:16:02,464 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:16:02,464 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:16:02,464 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:16:02,464 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:16:02,465 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:16:02,465 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-10-12 11:16:02,465 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-10-12 11:16:02,465 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-10-12 11:16:02,465 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-10-12 11:16:02,465 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-10-12 11:16:02,465 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-10-12 11:16:02,465 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-10-12 11:16:02,466 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-10-12 11:16:02,466 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-10-12 11:16:02,466 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-10-12 11:16:02,466 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-10-12 11:16:02,466 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-10-12 11:16:02,466 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-10-12 11:16:02,466 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-10-12 11:16:02,466 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-10-12 11:16:02,466 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-10-12 11:16:02,466 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:16:02,466 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:16:02,466 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:16:02,466 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:16:02,467 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-10-12 11:16:02,467 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:16:02,467 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-10-12 11:16:02,467 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:16:02,467 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-10-12 11:16:02,467 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-10-12 11:16:02,467 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-10-12 11:16:02,467 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:16:02,467 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:16:02,467 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-10-12 11:16:02,467 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-10-12 11:16:02,467 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-10-12 11:16:02,467 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-10-12 11:16:02,467 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-10-12 11:16:02,467 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-10-12 11:16:02,467 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-10-12 11:16:02,468 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-10-12 11:16:02,468 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-10-12 11:16:02,468 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-10-12 11:16:02,468 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-10-12 11:16:02,468 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:16:02,468 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:16:02,468 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:16:02,468 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:16:02,468 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:16:02,468 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:16:02,468 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-10-12 11:16:02,468 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-10-12 11:16:02,468 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-10-12 11:16:02,468 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-10-12 11:16:02,468 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-10-12 11:16:02,469 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-10-12 11:16:02,469 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-10-12 11:16:02,469 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-10-12 11:16:02,469 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-10-12 11:16:02,469 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-10-12 11:16:02,469 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-10-12 11:16:02,469 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:16:02,469 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:16:02,469 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:16:02,469 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:16:02,470 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:16:02,470 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:16:02,470 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-10-12 11:16:02,470 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-10-12 11:16:02,470 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-10-12 11:16:02,470 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-10-12 11:16:02,470 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-10-12 11:16:02,470 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-10-12 11:16:02,470 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-10-12 11:16:02,470 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-10-12 11:16:02,470 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-10-12 11:16:02,470 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-10-12 11:16:02,470 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-10-12 11:16:02,470 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-10-12 11:16:02,470 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-10-12 11:16:02,471 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-10-12 11:16:02,471 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:16:02,471 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:16:02,471 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:16:02,471 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse17 (= ~a28~0 |old(~a28~0)|)) (.cse10 (= ~a11~0 |old(~a11~0)|)) (.cse12 (= ~a25~0 |old(~a25~0)|)) (.cse29 (= ~a17~0 8)) (.cse7 (= ~a19~0 |old(~a19~0)|)) (.cse27 (= |old(~a11~0)| 1)) (.cse31 (or (not (<= 1 |calculate_output_#in~input|)) (not (<= |calculate_output_#in~input| 1))))) (let ((.cse1 (not (<= |old(~a19~0)| 1))) (.cse5 (= ~a17~0 |old(~a17~0)|)) (.cse3 (not (<= |old(~a28~0)| 9))) (.cse19 (not (= 10 |old(~a28~0)|))) (.cse22 (= ~a28~0 10)) (.cse11 (< 9 ~a28~0)) (.cse6 (<= ~a25~0 1)) (.cse13 (<= ~a28~0 10)) (.cse0 (not (<= |old(~a25~0)| 1))) (.cse2 (not (<= |old(~a17~0)| 8))) (.cse8 (not (<= |old(~a28~0)| 10))) (.cse9 (and (or (not (<= |calculate_output_#in~input| 5)) (not (<= 5 |calculate_output_#in~input|))) (or (not (<= 4 |calculate_output_#in~input|)) (not (<= |calculate_output_#in~input| 4))) (or (not (<= |calculate_output_#in~input| 3)) (not (<= 3 |calculate_output_#in~input|))) (or (not (<= |calculate_output_#in~input| 6)) (not (<= 6 |calculate_output_#in~input|))) .cse31)) (.cse15 (not (< 7 |old(~a17~0)|))) (.cse14 (and (not (<= 2 |old(~a11~0)|)) (not (<= |old(~a11~0)| 0)))) (.cse18 (not (<= |old(~a19~0)| 0))) (.cse16 (not (< 9 |old(~a28~0)|))) (.cse21 (= 7 ~a17~0)) (.cse30 (= ~a25~0 1)) (.cse28 (not (= |old(~a25~0)| 1))) (.cse20 (not (= 7 |old(~a17~0)|))) (.cse4 (not (= ~a21~0 1))) (.cse23 (not .cse27)) (.cse24 (not (= |old(~a19~0)| 1))) (.cse25 (and .cse17 .cse10 .cse12 .cse29 .cse7)) (.cse26 (not (= 8 |old(~a17~0)|)))) (and (or .cse0 .cse1 .cse2 (not (<= |old(~a11~0)| 1)) (not (<= 8 |old(~a17~0)|)) .cse3 .cse4 (not (<= 1 |old(~a11~0)|)) (not (<= 1 |old(~a25~0)|)) (and .cse5 (<= 1 ~a11~0) (<= 9 ~a28~0) (<= 1 ~a25~0) (<= ~a11~0 1) (<= ~a28~0 9) .cse6 .cse7) (not (<= 9 |old(~a28~0)|))) (or .cse1 .cse2 .cse8 (not (<= 1 |old(~a19~0)|)) .cse4 .cse9 (and .cse10 .cse11 .cse12 (<= ~a17~0 8) (< 7 ~a17~0) .cse13 .cse7) .cse14 .cse15 .cse16) (or (and .cse17 .cse5 .cse10 .cse12 .cse7) .cse3 .cse18) (or .cse19 .cse20 (not (= |old(~a19~0)| |old(~a25~0)|)) (not (= 0 |old(~a25~0)|)) .cse4 (and .cse21 .cse10 (= ~a25~0 ~a19~0) .cse7 .cse22) .cse23) (or .cse24 .cse25 .cse26 .cse3 .cse27 .cse4) (or .cse24 .cse25 .cse26 .cse3 (not (<= |old(~a25~0)| 0)) (= |old(~a17~0)| |old(~a28~0)|)) (or .cse28 .cse19 .cse24 .cse26 (and .cse10 .cse29 .cse30 .cse7 .cse22) .cse4 .cse23) (or .cse28 .cse24 (and (not (= |calculate_output_#in~input| 3)) (not (= |calculate_output_#in~input| 4)) (not (= |calculate_output_#in~input| 5)) .cse31 (not (= |calculate_output_#in~input| 6))) (not (= 11 |old(~a28~0)|)) .cse26 .cse27 .cse4 (and .cse10 .cse29 .cse30 .cse7 (= ~a28~0 11))) (or (and .cse10 .cse11 .cse29 .cse6 .cse13 .cse7 (< 0 ~a25~0)) .cse0 .cse2 .cse8 .cse4 .cse9 .cse15 .cse14 .cse18 (not (< 0 |old(~a25~0)|)) .cse16) (or (and .cse21 .cse10 (= 7 ~a28~0) .cse30 .cse7) .cse28 .cse20 .cse24 .cse4 (not (= 7 |old(~a28~0)|)) .cse23) (or (not (<= |old(~a28~0)| 7)) .cse24 .cse25 .cse26)))) [2020-10-12 11:16:02,471 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:16:02,471 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:16:02,471 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:16:02,472 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-10-12 11:16:02,472 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-10-12 11:16:02,472 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-10-12 11:16:02,472 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-10-12 11:16:02,472 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-10-12 11:16:02,472 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-10-12 11:16:02,472 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-10-12 11:16:02,472 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-10-12 11:16:02,472 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-10-12 11:16:02,472 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-10-12 11:16:02,472 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-10-12 11:16:02,472 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-10-12 11:16:02,472 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-10-12 11:16:02,472 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:16:02,472 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:16:02,473 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:16:02,473 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:16:02,473 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:16:02,473 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:16:02,473 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-10-12 11:16:02,473 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-10-12 11:16:02,473 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-10-12 11:16:02,473 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-10-12 11:16:02,473 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-10-12 11:16:02,473 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-10-12 11:16:02,473 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-10-12 11:16:02,473 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-10-12 11:16:02,473 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-10-12 11:16:02,473 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-10-12 11:16:02,473 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-10-12 11:16:02,474 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-10-12 11:16:02,474 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-10-12 11:16:02,474 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-10-12 11:16:02,474 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-10-12 11:16:02,474 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-10-12 11:16:02,474 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:16:02,474 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:16:02,474 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:16:02,474 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:16:02,474 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:16:02,474 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-10-12 11:16:02,474 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-10-12 11:16:02,475 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-10-12 11:16:02,475 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-10-12 11:16:02,475 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-10-12 11:16:02,475 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-10-12 11:16:02,475 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-10-12 11:16:02,475 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-10-12 11:16:02,475 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-10-12 11:16:02,475 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-10-12 11:16:02,475 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-10-12 11:16:02,476 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-10-12 11:16:02,476 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-10-12 11:16:02,476 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-10-12 11:16:02,476 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-10-12 11:16:02,476 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-10-12 11:16:02,476 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-10-12 11:16:02,476 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-10-12 11:16:02,476 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-10-12 11:16:02,476 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-12 11:16:02,476 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a25~0 ~a11~0) (= ~a19~0 1) (= ~a25~0 0) (= ~a21~0 1) (= ~a17~0 8) (= 7 ~a28~0)) [2020-10-12 11:16:02,477 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-12 11:16:02,477 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-12 11:16:02,477 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (and (= ~a25~0 ~a11~0) (= ~a19~0 1) (= ~a25~0 |old(~a25~0)|) (= ~a17~0 8) (= 7 ~a28~0)) (not (= |old(~a19~0)| 1)) (not (= 8 |old(~a17~0)|)) (not (= 0 |old(~a25~0)|)) (not (= ~a21~0 1)) (not (= 7 |old(~a28~0)|)) (not (= |old(~a11~0)| |old(~a25~0)|))) [2020-10-12 11:16:02,477 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse8 (<= ~a28~0 9)) (.cse7 (<= ~a19~0 0)) (.cse12 (<= ~a25~0 1)) (.cse0 (= 7 ~a17~0)) (.cse6 (= ~a28~0 10)) (.cse4 (<= ~a17~0 |old(~a17~0)|)) (.cse13 (or (<= ~a11~0 0) (< 1 ~a11~0))) (.cse9 (<= 8 ~a17~0)) (.cse10 (<= ~a19~0 1)) (.cse11 (<= ~a17~0 8)) (.cse14 (<= ~a28~0 10)) (.cse1 (= ~a19~0 1)) (.cse5 (= ~a17~0 8)) (.cse2 (= ~a25~0 1)) (.cse3 (= ~a11~0 1))) (or (and .cse0 .cse1 (= 7 ~a28~0) .cse2 .cse3) (and .cse1 .cse4 .cse5 .cse2 .cse6) (not (= |old(~a19~0)| 1)) (and .cse7 .cse4 .cse8) (and (<= 9 ~a28~0) .cse9 .cse10 .cse8 .cse11 .cse12) (and .cse13 .cse7 (<= 1 ~a25~0) .cse5 .cse12 .cse14) (not (= 8 |old(~a17~0)|)) (not (= 0 |old(~a25~0)|)) (and .cse0 (= ~a25~0 0) .cse3 (= ~a25~0 ~a19~0) .cse6) (and .cse1 .cse4 .cse5 (<= ~a28~0 7)) (not (= ~a21~0 1)) (and .cse13 .cse9 .cse10 .cse11 (<= 1 ~a19~0) .cse14) (not (= 7 |old(~a28~0)|)) (and .cse1 .cse5 .cse2 (not .cse3) (= ~a28~0 11)) (not (= |old(~a11~0)| |old(~a25~0)|)))) [2020-10-12 11:16:02,477 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-10-12 11:16:02,477 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-10-12 11:16:02,478 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse3 (= ~a11~0 1))) (let ((.cse6 (<= ~a28~0 9)) (.cse10 (<= ~a19~0 1)) (.cse0 (= 7 ~a17~0)) (.cse16 (= ~a28~0 10)) (.cse4 (<= ~a17~0 |old(~a17~0)|)) (.cse13 (or (<= ~a11~0 0) (< 1 ~a11~0))) (.cse8 (<= ~a19~0 0)) (.cse9 (<= 8 ~a17~0)) (.cse14 (or (and (<= 4 main_~input~0) (<= main_~input~0 4)) (and (<= 6 main_~input~0) (<= main_~input~0 6)) (and (<= main_~input~0 3) (<= 3 main_~input~0)) (and (<= main_~input~0 1) (<= 1 main_~input~0)) (and (<= main_~input~0 5) (<= 5 main_~input~0)))) (.cse11 (<= ~a17~0 8)) (.cse12 (<= ~a25~0 1)) (.cse15 (<= ~a28~0 10)) (.cse1 (= ~a19~0 1)) (.cse5 (= ~a17~0 8)) (.cse2 (= ~a25~0 1)) (.cse7 (not .cse3))) (or (and .cse0 .cse1 (= 7 ~a28~0) .cse2 .cse3) (not (= |old(~a19~0)| 1)) (and .cse1 .cse4 .cse5 .cse6 .cse7) (and .cse8 .cse4 .cse6) (and (<= 9 ~a28~0) .cse9 .cse10 .cse6 .cse11 .cse12) (not (= 8 |old(~a17~0)|)) (not (= 0 |old(~a25~0)|)) (and .cse13 .cse9 .cse14 .cse10 .cse11 (<= 1 ~a19~0) .cse15) (and .cse0 (= ~a25~0 0) .cse3 (= ~a25~0 ~a19~0) .cse16) (and .cse1 .cse4 .cse5 .cse2 .cse3 .cse16) (and .cse1 .cse4 .cse5 (<= ~a28~0 7)) (and .cse13 .cse8 (<= 1 ~a25~0) .cse9 .cse14 .cse11 .cse12 .cse15) (and .cse1 .cse5 (or (= ~a19~0 main_~input~0) (= 5 main_~input~0) (= 6 main_~input~0) (= main_~input~0 4) (= 3 main_~input~0)) .cse2 .cse7 (= ~a28~0 11)) (not (= ~a21~0 1)) (not (= 7 |old(~a28~0)|)) (not (= |old(~a11~0)| |old(~a25~0)|))))) [2020-10-12 11:16:02,478 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-10-12 11:16:02,478 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-10-12 11:16:02,503 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 11:16:02 BoogieIcfgContainer [2020-10-12 11:16:02,503 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-12 11:16:02,504 INFO L168 Benchmark]: Toolchain (without parser) took 99911.58 ms. Allocated memory was 140.5 MB in the beginning and 1.2 GB in the end (delta: 1.0 GB). Free memory was 101.7 MB in the beginning and 454.0 MB in the end (delta: -352.2 MB). Peak memory consumption was 968.8 MB. Max. memory is 7.1 GB. [2020-10-12 11:16:02,505 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-12 11:16:02,506 INFO L168 Benchmark]: CACSL2BoogieTranslator took 743.41 ms. Allocated memory was 140.5 MB in the beginning and 206.0 MB in the end (delta: 65.5 MB). Free memory was 101.5 MB in the beginning and 173.2 MB in the end (delta: -71.6 MB). Peak memory consumption was 34.6 MB. Max. memory is 7.1 GB. [2020-10-12 11:16:02,506 INFO L168 Benchmark]: Boogie Preprocessor took 138.32 ms. Allocated memory is still 206.0 MB. Free memory was 173.2 MB in the beginning and 168.4 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. [2020-10-12 11:16:02,507 INFO L168 Benchmark]: RCFGBuilder took 1246.73 ms. Allocated memory was 206.0 MB in the beginning and 237.0 MB in the end (delta: 30.9 MB). Free memory was 167.7 MB in the beginning and 179.4 MB in the end (delta: -11.7 MB). Peak memory consumption was 81.0 MB. Max. memory is 7.1 GB. [2020-10-12 11:16:02,507 INFO L168 Benchmark]: TraceAbstraction took 97778.33 ms. Allocated memory was 237.0 MB in the beginning and 1.2 GB in the end (delta: 923.8 MB). Free memory was 179.4 MB in the beginning and 454.0 MB in the end (delta: -274.5 MB). Peak memory consumption was 950.0 MB. Max. memory is 7.1 GB. [2020-10-12 11:16:02,510 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 743.41 ms. Allocated memory was 140.5 MB in the beginning and 206.0 MB in the end (delta: 65.5 MB). Free memory was 101.5 MB in the beginning and 173.2 MB in the end (delta: -71.6 MB). Peak memory consumption was 34.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 138.32 ms. Allocated memory is still 206.0 MB. Free memory was 173.2 MB in the beginning and 168.4 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1246.73 ms. Allocated memory was 206.0 MB in the beginning and 237.0 MB in the end (delta: 30.9 MB). Free memory was 167.7 MB in the beginning and 179.4 MB in the end (delta: -11.7 MB). Peak memory consumption was 81.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 97778.33 ms. Allocated memory was 237.0 MB in the beginning and 1.2 GB in the end (delta: 923.8 MB). Free memory was 179.4 MB in the beginning and 454.0 MB in the end (delta: -274.5 MB). Peak memory consumption was 950.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 442]: 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: 606]: Loop Invariant Derived loop invariant: (((((((((((((((((7 == a17 && a19 == 1) && 7 == a28) && a25 == 1) && a11 == 1) || ((((a19 == 1 && a17 <= \old(a17)) && a17 == 8) && a25 == 1) && a28 == 10)) || !(\old(a19) == 1)) || ((a19 <= 0 && a17 <= \old(a17)) && a28 <= 9)) || (((((9 <= a28 && 8 <= a17) && a19 <= 1) && a28 <= 9) && a17 <= 8) && a25 <= 1)) || ((((((a11 <= 0 || 1 < a11) && a19 <= 0) && 1 <= a25) && a17 == 8) && a25 <= 1) && a28 <= 10)) || !(8 == \old(a17))) || !(0 == \old(a25))) || ((((7 == a17 && a25 == 0) && a11 == 1) && a25 == a19) && a28 == 10)) || (((a19 == 1 && a17 <= \old(a17)) && a17 == 8) && a28 <= 7)) || !(a21 == 1)) || ((((((a11 <= 0 || 1 < a11) && 8 <= a17) && a19 <= 1) && a17 <= 8) && 1 <= a19) && a28 <= 10)) || !(7 == \old(a28))) || ((((a19 == 1 && a17 == 8) && a25 == 1) && !(a11 == 1)) && a28 == 11)) || !(\old(a11) == \old(a25)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 90.7s, OverallIterations: 21, TraceHistogramMax: 5, AutomataDifference: 43.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 6.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 787 SDtfs, 9863 SDslu, 1261 SDs, 0 SdLazy, 19938 SolverSat, 2043 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 22.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 490 GetRequests, 190 SyntacticMatches, 10 SemanticMatches, 290 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1494 ImplicationChecksByTransitivity, 21.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5608occurred in iteration=19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 21 MinimizatonAttempts, 1327 StatesRemovedByMinimization, 20 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 384 PreInvPairs, 463 NumberOfFragments, 1178 HoareAnnotationTreeSize, 384 FomulaSimplifications, 165727813 FormulaSimplificationTreeSizeReduction, 2.3s HoareSimplificationTime, 7 FomulaSimplificationsInter, 14913 FormulaSimplificationTreeSizeReductionInter, 4.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 42.1s InterpolantComputationTime, 3813 NumberOfCodeBlocks, 3813 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 3792 ConstructedInterpolants, 0 QuantifiedInterpolants, 7623317 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 21 InterpolantComputations, 1 PerfectInterpolantSequences, 2441/2647 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...