/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/Problem18_label43.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 15:05:13,192 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 15:05:13,196 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 15:05:13,237 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 15:05:13,237 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 15:05:13,249 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 15:05:13,251 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 15:05:13,254 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 15:05:13,257 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 15:05:13,261 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 15:05:13,262 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 15:05:13,262 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 15:05:13,263 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 15:05:13,266 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 15:05:13,268 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 15:05:13,269 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 15:05:13,270 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 15:05:13,271 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 15:05:13,273 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 15:05:13,280 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 15:05:13,282 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 15:05:13,283 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 15:05:13,284 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 15:05:13,285 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 15:05:13,287 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 15:05:13,287 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 15:05:13,288 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 15:05:13,290 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 15:05:13,291 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 15:05:13,292 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 15:05:13,293 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 15:05:13,293 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 15:05:13,294 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 15:05:13,295 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 15:05:13,296 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 15:05:13,296 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 15:05:13,297 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 15:05:13,297 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 15:05:13,297 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 15:05:13,298 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 15:05:13,299 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 15:05:13,300 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 15:05:13,338 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 15:05:13,338 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 15:05:13,340 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 15:05:13,340 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 15:05:13,340 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 15:05:13,340 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 15:05:13,341 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 15:05:13,341 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 15:05:13,341 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 15:05:13,341 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 15:05:13,342 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 15:05:13,343 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 15:05:13,343 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 15:05:13,343 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 15:05:13,343 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 15:05:13,344 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 15:05:13,344 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 15:05:13,344 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 15:05:13,344 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 15:05:13,344 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 15:05:13,345 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 15:05:13,345 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 15:05:13,345 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 15:05:13,345 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 15:05:13,345 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 15:05:13,346 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 15:05:13,346 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 15:05:13,346 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 15:05:13,346 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 15:05:13,346 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 15:05:13,635 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 15:05:13,647 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 15:05:13,651 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 15:05:13,652 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 15:05:13,653 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 15:05:13,653 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label43.c [2020-10-12 15:05:13,713 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/649f7b978/825cac710ca94c6aa6f967950b5a4911/FLAG198d6deee [2020-10-12 15:05:14,440 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 15:05:14,441 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem18_label43.c [2020-10-12 15:05:14,464 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/649f7b978/825cac710ca94c6aa6f967950b5a4911/FLAG198d6deee [2020-10-12 15:05:14,540 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/649f7b978/825cac710ca94c6aa6f967950b5a4911 [2020-10-12 15:05:14,552 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 15:05:14,554 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 15:05:14,555 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 15:05:14,556 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 15:05:14,560 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 15:05:14,561 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 03:05:14" (1/1) ... [2020-10-12 15:05:14,564 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b3c1036 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:05:14, skipping insertion in model container [2020-10-12 15:05:14,564 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 03:05:14" (1/1) ... [2020-10-12 15:05:14,573 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 15:05:14,680 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 15:05:15,872 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 15:05:15,879 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 15:05:16,341 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 15:05:16,380 INFO L208 MainTranslator]: Completed translation [2020-10-12 15:05:16,382 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:05:16 WrapperNode [2020-10-12 15:05:16,382 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 15:05:16,383 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 15:05:16,384 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 15:05:16,384 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 15:05:16,405 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:05:16" (1/1) ... [2020-10-12 15:05:16,408 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:05:16" (1/1) ... [2020-10-12 15:05:16,469 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:05:16" (1/1) ... [2020-10-12 15:05:16,469 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:05:16" (1/1) ... [2020-10-12 15:05:16,547 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:05:16" (1/1) ... [2020-10-12 15:05:16,573 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:05:16" (1/1) ... [2020-10-12 15:05:16,594 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:05:16" (1/1) ... [2020-10-12 15:05:16,616 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 15:05:16,617 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 15:05:16,617 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 15:05:16,617 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 15:05:16,619 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:05:16" (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 15:05:16,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 15:05:16,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 15:05:16,689 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-12 15:05:16,689 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-12 15:05:16,689 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2020-10-12 15:05:16,689 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 15:05:16,690 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-12 15:05:16,690 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-12 15:05:16,691 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2020-10-12 15:05:16,691 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 15:05:16,692 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 15:05:16,692 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-12 15:05:16,692 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 15:05:16,693 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 15:05:16,693 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 15:05:22,837 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 15:05:22,838 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-12 15:05:22,854 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 03:05:22 BoogieIcfgContainer [2020-10-12 15:05:22,855 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 15:05:22,857 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 15:05:22,858 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 15:05:22,861 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 15:05:22,861 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 03:05:14" (1/3) ... [2020-10-12 15:05:22,863 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29f8da81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 03:05:22, skipping insertion in model container [2020-10-12 15:05:22,863 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:05:16" (2/3) ... [2020-10-12 15:05:22,864 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29f8da81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 03:05:22, skipping insertion in model container [2020-10-12 15:05:22,864 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 03:05:22" (3/3) ... [2020-10-12 15:05:22,868 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem18_label43.c [2020-10-12 15:05:22,882 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 15:05:22,893 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 15:05:22,910 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 15:05:22,942 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 15:05:22,942 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 15:05:22,942 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 15:05:22,943 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 15:05:22,943 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 15:05:22,943 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 15:05:22,943 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 15:05:22,943 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 15:05:22,979 INFO L276 IsEmpty]: Start isEmpty. Operand 774 states. [2020-10-12 15:05:22,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-10-12 15:05:22,990 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:05:22,991 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] [2020-10-12 15:05:22,992 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:05:22,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:05:22,999 INFO L82 PathProgramCache]: Analyzing trace with hash -1742220159, now seen corresponding path program 1 times [2020-10-12 15:05:23,009 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:05:23,010 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [93422583] [2020-10-12 15:05:23,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:05:23,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:05:23,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:05:23,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:05:23,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-12 15:05:23,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:05:23,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 456 [2020-10-12 15:05:23,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:05:23,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 15:05:23,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 15:05:23,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-12 15:05:23,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 15:05:23,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:05:23,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:05:23,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:05:23,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:05:23,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:05:23,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:05:23,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 15:05:23,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:05:23,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:05:23,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:05:23,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 15:05:23,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:05:23,877 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 15:05:23,878 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [93422583] [2020-10-12 15:05:23,880 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 15:05:23,881 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-12 15:05:23,882 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826799727] [2020-10-12 15:05:23,888 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 15:05:23,889 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:05:23,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 15:05:23,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 15:05:23,908 INFO L87 Difference]: Start difference. First operand 774 states. Second operand 5 states. [2020-10-12 15:05:35,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:05:35,204 INFO L93 Difference]: Finished difference Result 2984 states and 5767 transitions. [2020-10-12 15:05:35,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 15:05:35,210 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 72 [2020-10-12 15:05:35,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:05:35,255 INFO L225 Difference]: With dead ends: 2984 [2020-10-12 15:05:35,255 INFO L226 Difference]: Without dead ends: 2142 [2020-10-12 15:05:35,266 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-12 15:05:35,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2142 states. [2020-10-12 15:05:35,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2142 to 2135. [2020-10-12 15:05:35,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2135 states. [2020-10-12 15:05:35,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2135 states to 2135 states and 3227 transitions. [2020-10-12 15:05:35,465 INFO L78 Accepts]: Start accepts. Automaton has 2135 states and 3227 transitions. Word has length 72 [2020-10-12 15:05:35,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:05:35,468 INFO L479 AbstractCegarLoop]: Abstraction has 2135 states and 3227 transitions. [2020-10-12 15:05:35,468 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 15:05:35,468 INFO L276 IsEmpty]: Start isEmpty. Operand 2135 states and 3227 transitions. [2020-10-12 15:05:35,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-10-12 15:05:35,492 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:05:35,492 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, 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] [2020-10-12 15:05:35,493 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 15:05:35,493 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:05:35,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:05:35,494 INFO L82 PathProgramCache]: Analyzing trace with hash 477586780, now seen corresponding path program 1 times [2020-10-12 15:05:35,494 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:05:35,494 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [556938198] [2020-10-12 15:05:35,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:05:35,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:05:35,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:05:35,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:05:36,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:05:37,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:05:37,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-10-12 15:05:37,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 15:05:37,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2074 [2020-10-12 15:05:37,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:05:37,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 15:05:37,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-12 15:05:37,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-12 15:05:37,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 15:05:37,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:05:37,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:05:37,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:05:37,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:05:37,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:05:37,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:05:37,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 15:05:37,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:05:37,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:05:37,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:05:37,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:05:37,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:05:37,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:05:37,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:05:37,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:05:37,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:05:37,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-12 15:05:37,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:05:37,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-12 15:05:37,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:05:37,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:05:37,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:05:37,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-12 15:05:37,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:05:38,141 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 64 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 15:05:38,142 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [556938198] [2020-10-12 15:05:38,143 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:05:38,143 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-12 15:05:38,144 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275946925] [2020-10-12 15:05:38,147 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 15:05:38,148 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:05:38,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 15:05:38,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-12 15:05:38,149 INFO L87 Difference]: Start difference. First operand 2135 states and 3227 transitions. Second operand 8 states. [2020-10-12 15:05:45,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:05:45,207 INFO L93 Difference]: Finished difference Result 4392 states and 6604 transitions. [2020-10-12 15:05:45,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 15:05:45,211 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-10-12 15:05:45,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:05:45,224 INFO L225 Difference]: With dead ends: 4392 [2020-10-12 15:05:45,224 INFO L226 Difference]: Without dead ends: 2142 [2020-10-12 15:05:45,234 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2020-10-12 15:05:45,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2142 states. [2020-10-12 15:05:45,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2142 to 2135. [2020-10-12 15:05:45,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2135 states. [2020-10-12 15:05:45,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2135 states to 2135 states and 2643 transitions. [2020-10-12 15:05:45,293 INFO L78 Accepts]: Start accepts. Automaton has 2135 states and 2643 transitions. Word has length 142 [2020-10-12 15:05:45,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:05:45,294 INFO L479 AbstractCegarLoop]: Abstraction has 2135 states and 2643 transitions. [2020-10-12 15:05:45,294 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 15:05:45,294 INFO L276 IsEmpty]: Start isEmpty. Operand 2135 states and 2643 transitions. [2020-10-12 15:05:45,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-10-12 15:05:45,297 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:05:45,297 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, 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] [2020-10-12 15:05:45,297 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 15:05:45,298 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:05:45,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:05:45,298 INFO L82 PathProgramCache]: Analyzing trace with hash 1761018260, now seen corresponding path program 1 times [2020-10-12 15:05:45,298 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:05:45,299 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1041694561] [2020-10-12 15:05:45,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:05:45,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:05:45,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:05:45,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:05:46,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:05:46,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 156 [2020-10-12 15:05:46,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:05:46,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 842 [2020-10-12 15:05:46,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:05:46,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 15:05:46,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 15:05:46,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-12 15:05:46,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:05:46,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:05:46,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:05:46,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:05:46,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:05:46,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:05:46,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:05:46,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 15:05:46,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:05:46,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:05:46,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:05:46,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 15:05:46,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:05:46,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:05:46,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:05:46,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:05:46,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:05:46,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-12 15:05:46,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:05:46,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-12 15:05:46,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:05:46,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:05:46,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:05:46,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-12 15:05:46,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:05:46,459 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 15:05:46,460 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1041694561] [2020-10-12 15:05:46,460 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 15:05:46,461 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 15:05:46,461 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476154312] [2020-10-12 15:05:46,461 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 15:05:46,462 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:05:46,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 15:05:46,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 15:05:46,462 INFO L87 Difference]: Start difference. First operand 2135 states and 2643 transitions. Second operand 7 states. [2020-10-12 15:05:53,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:05:53,027 INFO L93 Difference]: Finished difference Result 6487 states and 8127 transitions. [2020-10-12 15:05:53,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 15:05:53,029 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 146 [2020-10-12 15:05:53,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:05:53,055 INFO L225 Difference]: With dead ends: 6487 [2020-10-12 15:05:53,055 INFO L226 Difference]: Without dead ends: 4358 [2020-10-12 15:05:53,061 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 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 15:05:53,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4358 states. [2020-10-12 15:05:53,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4358 to 4305. [2020-10-12 15:05:53,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4305 states. [2020-10-12 15:05:53,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4305 states to 4305 states and 4969 transitions. [2020-10-12 15:05:53,176 INFO L78 Accepts]: Start accepts. Automaton has 4305 states and 4969 transitions. Word has length 146 [2020-10-12 15:05:53,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:05:53,177 INFO L479 AbstractCegarLoop]: Abstraction has 4305 states and 4969 transitions. [2020-10-12 15:05:53,177 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 15:05:53,177 INFO L276 IsEmpty]: Start isEmpty. Operand 4305 states and 4969 transitions. [2020-10-12 15:05:53,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-10-12 15:05:53,180 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:05:53,180 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, 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] [2020-10-12 15:05:53,181 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 15:05:53,181 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:05:53,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:05:53,181 INFO L82 PathProgramCache]: Analyzing trace with hash -2036853708, now seen corresponding path program 1 times [2020-10-12 15:05:53,181 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:05:53,182 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [614666507] [2020-10-12 15:05:53,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:05:53,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:05:53,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:05:53,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:05:54,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:05:54,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 204 [2020-10-12 15:05:54,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:05:54,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1232 [2020-10-12 15:05:54,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:05:54,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 15:05:54,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 15:05:54,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-12 15:05:54,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:05:54,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:05:54,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:05:54,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:05:54,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:05:54,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:05:54,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:05:54,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 15:05:54,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:05:54,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:05:54,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:05:54,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 15:05:54,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:05:54,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:05:54,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:05:54,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:05:54,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:05:54,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-12 15:05:54,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:05:54,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 148 [2020-10-12 15:05:54,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:05:54,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:05:54,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:05:54,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-12 15:05:54,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:05:54,929 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2020-10-12 15:05:55,187 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 15:05:55,188 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [614666507] [2020-10-12 15:05:55,188 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 15:05:55,188 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 15:05:55,189 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559141564] [2020-10-12 15:05:55,190 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 15:05:55,191 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:05:55,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 15:05:55,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 15:05:55,192 INFO L87 Difference]: Start difference. First operand 4305 states and 4969 transitions. Second operand 7 states. [2020-10-12 15:06:01,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:06:01,709 INFO L93 Difference]: Finished difference Result 9503 states and 11160 transitions. [2020-10-12 15:06:01,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 15:06:01,710 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 194 [2020-10-12 15:06:01,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:06:01,737 INFO L225 Difference]: With dead ends: 9503 [2020-10-12 15:06:01,738 INFO L226 Difference]: Without dead ends: 5204 [2020-10-12 15:06:01,747 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-12 15:06:01,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5204 states. [2020-10-12 15:06:01,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5204 to 5067. [2020-10-12 15:06:01,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5067 states. [2020-10-12 15:06:01,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5067 states to 5067 states and 5757 transitions. [2020-10-12 15:06:01,899 INFO L78 Accepts]: Start accepts. Automaton has 5067 states and 5757 transitions. Word has length 194 [2020-10-12 15:06:01,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:06:01,901 INFO L479 AbstractCegarLoop]: Abstraction has 5067 states and 5757 transitions. [2020-10-12 15:06:01,901 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 15:06:01,901 INFO L276 IsEmpty]: Start isEmpty. Operand 5067 states and 5757 transitions. [2020-10-12 15:06:01,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 722 [2020-10-12 15:06:01,926 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:06:01,928 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:06:01,928 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 15:06:01,928 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:06:01,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:06:01,929 INFO L82 PathProgramCache]: Analyzing trace with hash -1861414324, now seen corresponding path program 1 times [2020-10-12 15:06:01,929 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:06:01,929 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1764516436] [2020-10-12 15:06:01,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:06:02,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:06:02,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:06:02,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:06:02,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:06:07,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:06:07,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 737 [2020-10-12 15:06:07,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 15:06:07,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5071 [2020-10-12 15:06:07,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:06:07,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 15:06:07,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 15:06:07,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 661 [2020-10-12 15:06:07,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:06:07,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:06:07,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:06:07,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:06:07,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:06:07,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:06:07,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:06:07,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 15:06:07,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:06:07,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:06:07,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:06:07,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 15:06:07,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:06:07,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:06:07,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:06:07,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:06:08,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:06:08,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-12 15:06:08,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:06:08,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1476 [2020-10-12 15:06:08,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:06:08,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 15:06:08,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:06:08,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 532 [2020-10-12 15:06:08,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:06:09,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:06:09,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:06:09,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:06:09,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:06:09,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-12 15:06:09,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:06:09,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 515 [2020-10-12 15:06:09,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:06:09,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 15:06:09,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:06:09,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 244 [2020-10-12 15:06:09,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-12 15:06:10,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-12 15:06:10,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:06:10,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:06:10,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:06:10,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 15:06:10,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:06:10,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-12 15:06:10,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:06:10,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:06:10,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:06:10,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-12 15:06:10,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:06:11,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-12 15:06:11,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:06:11,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:06:11,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:06:11,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-12 15:06:11,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:06:11,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 207 [2020-10-12 15:06:11,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:06:11,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:06:11,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:06:11,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-12 15:06:11,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:06:12,504 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 131 proven. 117 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-12 15:06:12,505 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1764516436] [2020-10-12 15:06:12,505 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:06:12,506 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-12 15:06:12,506 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347707028] [2020-10-12 15:06:12,507 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 15:06:12,507 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:06:12,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 15:06:12,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-10-12 15:06:12,508 INFO L87 Difference]: Start difference. First operand 5067 states and 5757 transitions. Second operand 10 states. [2020-10-12 15:06:19,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:06:19,244 INFO L93 Difference]: Finished difference Result 10285 states and 11759 transitions. [2020-10-12 15:06:19,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-12 15:06:19,245 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 721 [2020-10-12 15:06:19,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:06:19,271 INFO L225 Difference]: With dead ends: 10285 [2020-10-12 15:06:19,271 INFO L226 Difference]: Without dead ends: 5926 [2020-10-12 15:06:19,280 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=95, Invalid=211, Unknown=0, NotChecked=0, Total=306 [2020-10-12 15:06:19,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5926 states. [2020-10-12 15:06:19,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5926 to 5794. [2020-10-12 15:06:19,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5794 states. [2020-10-12 15:06:19,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5794 states to 5794 states and 6493 transitions. [2020-10-12 15:06:19,403 INFO L78 Accepts]: Start accepts. Automaton has 5794 states and 6493 transitions. Word has length 721 [2020-10-12 15:06:19,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:06:19,404 INFO L479 AbstractCegarLoop]: Abstraction has 5794 states and 6493 transitions. [2020-10-12 15:06:19,404 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 15:06:19,405 INFO L276 IsEmpty]: Start isEmpty. Operand 5794 states and 6493 transitions. [2020-10-12 15:06:19,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1029 [2020-10-12 15:06:19,439 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:06:19,440 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, 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, 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, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:06:19,441 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 15:06:19,441 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:06:19,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:06:19,442 INFO L82 PathProgramCache]: Analyzing trace with hash -2010741302, now seen corresponding path program 1 times [2020-10-12 15:06:19,442 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:06:19,442 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [126812665] [2020-10-12 15:06:19,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:06:19,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:06:19,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:06:20,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:06:24,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:06:24,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1048 [2020-10-12 15:06:24,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:06:24,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5101 [2020-10-12 15:06:24,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:06:24,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:06:24,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 976 [2020-10-12 15:06:24,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-12 15:06:24,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:06:24,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:06:24,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:06:24,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:06:24,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:06:24,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:06:24,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:06:24,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 15:06:24,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:06:24,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:06:24,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:06:24,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:06:24,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:06:24,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:06:25,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:06:25,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:06:25,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:06:25,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-12 15:06:25,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:06:25,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-12 15:06:25,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:06:25,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:06:25,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:06:25,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:06:25,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:06:25,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:06:25,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:06:25,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:06:25,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:06:25,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-12 15:06:25,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:06:25,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-12 15:06:25,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:06:25,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:06:25,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:06:25,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:06:25,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:06:25,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-12 15:06:25,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:06:25,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:06:25,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:06:25,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 15:06:25,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:06:25,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 15:06:25,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:06:25,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:06:25,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:06:25,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:06:25,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:06:25,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-12 15:06:25,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:06:25,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:06:25,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:06:25,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-12 15:06:25,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:06:25,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-12 15:06:25,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:06:25,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:06:25,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:06:25,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:06:25,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:06:25,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:06:25,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:06:25,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:06:25,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:06:25,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 15:06:25,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:06:25,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 15:06:25,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:06:25,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:06:25,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:06:25,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:06:25,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:06:25,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-12 15:06:25,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:06:25,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:06:25,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:06:25,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-12 15:06:25,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:06:25,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-10-12 15:06:25,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:06:25,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:06:25,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:06:25,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-12 15:06:25,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 15:06:26,550 INFO L134 CoverageAnalysis]: Checked inductivity of 746 backedges. 198 proven. 3 refuted. 0 times theorem prover too weak. 545 trivial. 0 not checked. [2020-10-12 15:06:26,551 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [126812665] [2020-10-12 15:06:26,551 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:06:26,551 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 15:06:26,551 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345957783] [2020-10-12 15:06:26,552 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 15:06:26,552 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:06:26,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 15:06:26,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 15:06:26,553 INFO L87 Difference]: Start difference. First operand 5794 states and 6493 transitions. Second operand 5 states. [2020-10-12 15:06:32,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:06:32,260 INFO L93 Difference]: Finished difference Result 11628 states and 13553 transitions. [2020-10-12 15:06:32,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 15:06:32,262 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1028 [2020-10-12 15:06:32,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:06:32,296 INFO L225 Difference]: With dead ends: 11628 [2020-10-12 15:06:32,296 INFO L226 Difference]: Without dead ends: 7252 [2020-10-12 15:06:32,307 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 15:06:32,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7252 states. [2020-10-12 15:06:32,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7252 to 7242. [2020-10-12 15:06:32,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7242 states. [2020-10-12 15:06:32,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7242 states to 7242 states and 8120 transitions. [2020-10-12 15:06:32,442 INFO L78 Accepts]: Start accepts. Automaton has 7242 states and 8120 transitions. Word has length 1028 [2020-10-12 15:06:32,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:06:32,444 INFO L479 AbstractCegarLoop]: Abstraction has 7242 states and 8120 transitions. [2020-10-12 15:06:32,444 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 15:06:32,444 INFO L276 IsEmpty]: Start isEmpty. Operand 7242 states and 8120 transitions. [2020-10-12 15:06:32,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1102 [2020-10-12 15:06:32,463 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:06:32,465 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:06:32,465 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 15:06:32,465 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:06:32,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:06:32,466 INFO L82 PathProgramCache]: Analyzing trace with hash 1326380236, now seen corresponding path program 1 times [2020-10-12 15:06:32,466 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:06:32,467 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [583194139] [2020-10-12 15:06:32,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:06:32,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:06:32,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:06:33,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:06:35,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:06:37,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:06:37,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1123 [2020-10-12 15:06:37,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 15:06:37,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5151 [2020-10-12 15:06:37,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:06:37,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:06:37,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 849 [2020-10-12 15:06:37,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-12 15:06:37,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:06:38,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:06:38,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:06:38,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:06:38,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:06:38,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:06:38,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:06:38,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 15:06:38,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:06:38,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:06:38,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:06:38,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:06:38,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:06:38,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:06:38,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:06:38,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:06:38,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:06:38,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-12 15:06:38,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:06:38,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 181 [2020-10-12 15:06:38,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:06:38,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:06:38,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:06:38,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:06:38,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:06:38,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:06:38,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:06:38,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:06:38,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:06:38,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-12 15:06:38,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:06:38,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-10-12 15:06:38,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:06:38,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:06:38,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:06:38,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:06:38,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:06:38,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-12 15:06:38,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:06:38,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:06:38,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:06:38,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 15:06:38,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:06:38,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 15:06:38,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:06:38,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:06:38,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:06:38,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:06:38,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:06:39,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-12 15:06:39,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:06:39,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:06:39,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:06:39,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-12 15:06:39,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:06:39,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 306 [2020-10-12 15:06:39,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:06:39,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:06:39,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:06:39,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 301 [2020-10-12 15:06:39,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:06:39,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:06:39,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:06:39,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:06:39,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:06:39,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 15:06:39,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:06:39,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-12 15:06:39,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:06:39,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:06:39,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:06:39,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-12 15:06:39,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:06:39,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-12 15:06:39,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:06:39,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:06:39,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:06:39,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-12 15:06:39,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:06:39,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 161 [2020-10-12 15:06:39,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:06:39,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:06:39,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:06:39,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-12 15:06:39,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:06:39,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 964 [2020-10-12 15:06:39,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:06:39,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:06:40,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:06:40,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-12 15:06:40,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:06:40,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 15:06:40,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:06:40,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:06:40,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-10-12 15:06:40,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:06:40,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:06:40,793 INFO L134 CoverageAnalysis]: Checked inductivity of 1030 backedges. 514 proven. 72 refuted. 0 times theorem prover too weak. 444 trivial. 0 not checked. [2020-10-12 15:06:40,793 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [583194139] [2020-10-12 15:06:40,794 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:06:40,794 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 15:06:40,794 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651645658] [2020-10-12 15:06:40,796 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 15:06:40,796 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:06:40,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 15:06:40,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 15:06:40,797 INFO L87 Difference]: Start difference. First operand 7242 states and 8120 transitions. Second operand 7 states. [2020-10-12 15:06:48,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:06:48,189 INFO L93 Difference]: Finished difference Result 19048 states and 22080 transitions. [2020-10-12 15:06:48,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 15:06:48,190 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1101 [2020-10-12 15:06:48,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:06:48,231 INFO L225 Difference]: With dead ends: 19048 [2020-10-12 15:06:48,231 INFO L226 Difference]: Without dead ends: 13224 [2020-10-12 15:06:48,247 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 22 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 15:06:48,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13224 states. [2020-10-12 15:06:48,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13224 to 12431. [2020-10-12 15:06:48,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12431 states. [2020-10-12 15:06:48,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12431 states to 12431 states and 13930 transitions. [2020-10-12 15:06:48,472 INFO L78 Accepts]: Start accepts. Automaton has 12431 states and 13930 transitions. Word has length 1101 [2020-10-12 15:06:48,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:06:48,475 INFO L479 AbstractCegarLoop]: Abstraction has 12431 states and 13930 transitions. [2020-10-12 15:06:48,475 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 15:06:48,475 INFO L276 IsEmpty]: Start isEmpty. Operand 12431 states and 13930 transitions. [2020-10-12 15:06:48,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1110 [2020-10-12 15:06:48,496 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:06:48,498 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:06:48,499 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 15:06:48,499 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:06:48,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:06:48,500 INFO L82 PathProgramCache]: Analyzing trace with hash -376972605, now seen corresponding path program 1 times [2020-10-12 15:06:48,500 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:06:48,500 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [717592330] [2020-10-12 15:06:48,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:06:48,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:06:48,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:06:49,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:06:51,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:06:53,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:06:53,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1131 [2020-10-12 15:06:53,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 15:06:53,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-12 15:06:53,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:06:53,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:06:53,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1059 [2020-10-12 15:06:53,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-12 15:06:53,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:06:53,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:06:53,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:06:53,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:06:53,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:06:53,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:06:53,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:06:53,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 15:06:53,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:06:53,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:06:53,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:06:53,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:06:53,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:06:54,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:06:54,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:06:54,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:06:54,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:06:54,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-12 15:06:54,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:06:54,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-12 15:06:54,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:06:54,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:06:54,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:06:54,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:06:54,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:06:54,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:06:54,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:06:54,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:06:54,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:06:54,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-12 15:06:54,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:06:54,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-12 15:06:54,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:06:54,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:06:54,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:06:54,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:06:54,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:06:54,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-12 15:06:54,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:06:54,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:06:54,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:06:54,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 15:06:54,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:06:54,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 15:06:54,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:06:54,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:06:54,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:06:54,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:06:54,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:06:54,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-12 15:06:54,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:06:54,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:06:54,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:06:54,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 317 [2020-10-12 15:06:54,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:06:54,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-12 15:06:54,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:06:54,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:06:54,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:06:54,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:06:54,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:06:54,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:06:54,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:06:54,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:06:54,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:06:54,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-12 15:06:54,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:06:54,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 15:06:54,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:06:54,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:06:54,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:06:54,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:06:54,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:06:54,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 849 [2020-10-12 15:06:54,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:06:54,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:06:54,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:06:54,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-12 15:06:54,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:06:54,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 15:06:54,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:06:54,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:06:54,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:06:54,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:06:54,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:06:54,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 971 [2020-10-12 15:06:54,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:06:54,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:06:54,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:06:54,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-12 15:06:54,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:06:54,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-12 15:06:54,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:06:54,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:06:54,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:06:54,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-12 15:06:54,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:06:55,231 INFO L134 CoverageAnalysis]: Checked inductivity of 1040 backedges. 265 proven. 4 refuted. 0 times theorem prover too weak. 771 trivial. 0 not checked. [2020-10-12 15:06:55,231 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [717592330] [2020-10-12 15:06:55,231 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:06:55,232 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 15:06:55,232 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388452432] [2020-10-12 15:06:55,233 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 15:06:55,233 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:06:55,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 15:06:55,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 15:06:55,233 INFO L87 Difference]: Start difference. First operand 12431 states and 13930 transitions. Second operand 5 states. [2020-10-12 15:07:01,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:07:01,403 INFO L93 Difference]: Finished difference Result 23454 states and 26517 transitions. [2020-10-12 15:07:01,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 15:07:01,404 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1109 [2020-10-12 15:07:01,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:07:01,440 INFO L225 Difference]: With dead ends: 23454 [2020-10-12 15:07:01,440 INFO L226 Difference]: Without dead ends: 12441 [2020-10-12 15:07:01,461 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 15:07:01,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12441 states. [2020-10-12 15:07:01,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12441 to 12418. [2020-10-12 15:07:01,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12418 states. [2020-10-12 15:07:01,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12418 states to 12418 states and 13417 transitions. [2020-10-12 15:07:01,823 INFO L78 Accepts]: Start accepts. Automaton has 12418 states and 13417 transitions. Word has length 1109 [2020-10-12 15:07:01,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:07:01,824 INFO L479 AbstractCegarLoop]: Abstraction has 12418 states and 13417 transitions. [2020-10-12 15:07:01,825 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 15:07:01,825 INFO L276 IsEmpty]: Start isEmpty. Operand 12418 states and 13417 transitions. [2020-10-12 15:07:01,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1162 [2020-10-12 15:07:01,844 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:07:01,845 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:07:01,845 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 15:07:01,845 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:07:01,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:07:01,846 INFO L82 PathProgramCache]: Analyzing trace with hash -1475758117, now seen corresponding path program 1 times [2020-10-12 15:07:01,846 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:07:01,847 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1888664966] [2020-10-12 15:07:01,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:07:02,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:07:02,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:02,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:03,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:04,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:07,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:07:07,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1185 [2020-10-12 15:07:07,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 15:07:07,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5081 [2020-10-12 15:07:07,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:07:07,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:07:07,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1113 [2020-10-12 15:07:07,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-12 15:07:07,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:07:07,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:07:07,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:07:07,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:07,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:07:07,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:07:07,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:07:07,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 15:07:07,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:07:07,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:07:07,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:07:07,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:07:07,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:07:07,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:07:07,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:07:07,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:07,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:07:07,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-12 15:07:07,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:07:07,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-12 15:07:07,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:07:07,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:07:07,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:07:07,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:07:07,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:07:07,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:07:07,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:07:07,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:07,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:07:07,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-12 15:07:07,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:07:07,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-12 15:07:07,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:07:07,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:07:07,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:07:07,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:07:07,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:07:07,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-12 15:07:07,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:07:07,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:07,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:07:07,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 15:07:07,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:07:07,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 15:07:07,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:07:07,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:07:07,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:07:07,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:07:07,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:07:07,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-12 15:07:07,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:07:07,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:07,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:07:07,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-12 15:07:07,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:07:07,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-12 15:07:07,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:07:07,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:07:07,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:07:07,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:07:07,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:07:07,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:07:07,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:07:07,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:07,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:07:07,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 15:07:07,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:07:07,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 15:07:07,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:07:07,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:07:07,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:07:07,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:07:07,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:07:07,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-12 15:07:07,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:07:07,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:07,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:07:07,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-12 15:07:07,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:07:07,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 15:07:07,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:07:07,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:07:07,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:07:07,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:07:07,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:07:07,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 932 [2020-10-12 15:07:07,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:07:07,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:07,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:07:07,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-12 15:07:07,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:07:07,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 15:07:07,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:07:07,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:07:07,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:07:07,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:07:07,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:07:07,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1003 [2020-10-12 15:07:07,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:07:07,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:07,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:07:07,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-12 15:07:07,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:07:07,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-12 15:07:07,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:07:07,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:07:07,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:07:07,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-12 15:07:07,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:07:08,765 INFO L134 CoverageAnalysis]: Checked inductivity of 1374 backedges. 332 proven. 5 refuted. 0 times theorem prover too weak. 1037 trivial. 0 not checked. [2020-10-12 15:07:08,766 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1888664966] [2020-10-12 15:07:08,766 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:07:08,766 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 15:07:08,766 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084814676] [2020-10-12 15:07:08,767 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 15:07:08,768 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:07:08,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 15:07:08,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 15:07:08,768 INFO L87 Difference]: Start difference. First operand 12418 states and 13417 transitions. Second operand 5 states. [2020-10-12 15:07:13,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:07:13,074 INFO L93 Difference]: Finished difference Result 23473 states and 25476 transitions. [2020-10-12 15:07:13,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 15:07:13,076 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1161 [2020-10-12 15:07:13,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:07:13,113 INFO L225 Difference]: With dead ends: 23473 [2020-10-12 15:07:13,114 INFO L226 Difference]: Without dead ends: 12441 [2020-10-12 15:07:13,134 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 15:07:13,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12441 states. [2020-10-12 15:07:13,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12441 to 12418. [2020-10-12 15:07:13,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12418 states. [2020-10-12 15:07:13,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12418 states to 12418 states and 13416 transitions. [2020-10-12 15:07:13,352 INFO L78 Accepts]: Start accepts. Automaton has 12418 states and 13416 transitions. Word has length 1161 [2020-10-12 15:07:13,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:07:13,353 INFO L479 AbstractCegarLoop]: Abstraction has 12418 states and 13416 transitions. [2020-10-12 15:07:13,353 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 15:07:13,354 INFO L276 IsEmpty]: Start isEmpty. Operand 12418 states and 13416 transitions. [2020-10-12 15:07:13,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1171 [2020-10-12 15:07:13,386 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:07:13,387 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:07:13,387 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-12 15:07:13,387 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:07:13,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:07:13,388 INFO L82 PathProgramCache]: Analyzing trace with hash -1336652214, now seen corresponding path program 1 times [2020-10-12 15:07:13,388 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:07:13,389 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1874686103] [2020-10-12 15:07:13,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:07:13,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:07:13,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:13,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:15,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:16,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:18,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:07:18,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1192 [2020-10-12 15:07:18,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 15:07:18,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5026 [2020-10-12 15:07:18,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:07:18,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:07:18,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 983 [2020-10-12 15:07:18,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-10-12 15:07:18,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:07:18,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:07:18,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:07:18,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:18,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:07:18,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:07:18,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:07:18,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 15:07:18,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:07:18,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:07:18,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:07:18,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:07:18,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:07:18,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:07:18,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:07:18,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:18,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:07:18,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-12 15:07:18,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:07:18,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-12 15:07:18,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:07:18,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:07:18,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:07:18,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:07:18,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:07:18,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:07:19,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:07:19,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:19,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:07:19,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-12 15:07:19,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:07:19,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-12 15:07:19,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:07:19,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:07:19,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:07:19,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:07:19,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:07:19,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-12 15:07:19,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:07:19,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:19,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:07:19,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 15:07:19,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:07:19,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 15:07:19,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:07:19,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:07:19,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:07:19,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:07:19,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:07:19,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-12 15:07:19,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:07:19,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:19,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:07:19,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 317 [2020-10-12 15:07:19,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:07:19,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-12 15:07:19,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:07:19,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:07:19,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:07:19,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:07:19,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:07:19,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:07:19,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:07:19,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:19,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:07:19,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-12 15:07:19,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:07:19,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 15:07:19,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:07:19,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:07:19,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:07:19,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:07:19,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:07:19,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 849 [2020-10-12 15:07:19,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:07:19,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:19,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:07:19,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-12 15:07:19,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:07:19,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-12 15:07:19,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:07:19,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:07:19,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:07:19,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-12 15:07:19,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:07:19,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 971 [2020-10-12 15:07:19,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:07:19,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:19,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:07:19,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-12 15:07:19,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:07:19,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-12 15:07:19,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:07:19,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:07:19,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:07:19,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-12 15:07:19,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:07:20,255 INFO L134 CoverageAnalysis]: Checked inductivity of 1210 backedges. 653 proven. 2 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2020-10-12 15:07:20,255 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1874686103] [2020-10-12 15:07:20,256 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:07:20,256 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 15:07:20,256 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915300335] [2020-10-12 15:07:20,257 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 15:07:20,257 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:07:20,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 15:07:20,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 15:07:20,258 INFO L87 Difference]: Start difference. First operand 12418 states and 13416 transitions. Second operand 7 states. [2020-10-12 15:07:27,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:07:27,884 INFO L93 Difference]: Finished difference Result 27877 states and 30770 transitions. [2020-10-12 15:07:27,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 15:07:27,886 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1170 [2020-10-12 15:07:27,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:07:27,926 INFO L225 Difference]: With dead ends: 27877 [2020-10-12 15:07:27,926 INFO L226 Difference]: Without dead ends: 15445 [2020-10-12 15:07:27,949 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-12 15:07:27,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15445 states. [2020-10-12 15:07:28,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15445 to 15386. [2020-10-12 15:07:28,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15386 states. [2020-10-12 15:07:28,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15386 states to 15386 states and 16611 transitions. [2020-10-12 15:07:28,156 INFO L78 Accepts]: Start accepts. Automaton has 15386 states and 16611 transitions. Word has length 1170 [2020-10-12 15:07:28,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:07:28,157 INFO L479 AbstractCegarLoop]: Abstraction has 15386 states and 16611 transitions. [2020-10-12 15:07:28,157 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 15:07:28,157 INFO L276 IsEmpty]: Start isEmpty. Operand 15386 states and 16611 transitions. [2020-10-12 15:07:28,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1203 [2020-10-12 15:07:28,185 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:07:28,189 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:07:28,190 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-12 15:07:28,190 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:07:28,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:07:28,191 INFO L82 PathProgramCache]: Analyzing trace with hash 685121738, now seen corresponding path program 1 times [2020-10-12 15:07:28,191 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:07:28,191 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1928285981] [2020-10-12 15:07:28,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:07:28,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:07:28,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:29,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:29,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:30,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:33,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:07:33,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1226 [2020-10-12 15:07:33,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 15:07:33,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5055 [2020-10-12 15:07:33,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:07:33,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:07:33,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1154 [2020-10-12 15:07:33,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-12 15:07:33,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:07:33,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:07:33,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:07:33,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:33,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:07:33,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:07:33,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:07:33,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 15:07:33,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:07:33,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:07:33,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:07:33,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:07:33,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:07:33,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:07:33,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:07:33,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:33,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:07:33,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-12 15:07:33,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:07:33,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-12 15:07:33,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:07:33,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:07:33,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:07:33,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:07:33,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:07:33,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:07:33,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:07:33,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:33,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:07:33,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-12 15:07:33,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:07:33,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-12 15:07:33,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:07:33,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:07:33,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:07:33,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:07:33,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:07:33,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-12 15:07:33,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:07:33,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:33,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:07:33,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 15:07:33,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:07:33,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 15:07:33,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:07:33,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:07:33,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:07:33,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:07:33,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:07:34,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-12 15:07:34,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:07:34,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:34,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:07:34,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-12 15:07:34,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:07:34,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-12 15:07:34,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:07:34,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:07:34,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:07:34,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:07:34,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:07:34,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:07:34,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:07:34,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:34,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:07:34,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 15:07:34,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:07:34,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 15:07:34,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:07:34,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:07:34,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:07:34,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:07:34,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:07:34,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-12 15:07:34,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:07:34,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:34,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:07:34,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-12 15:07:34,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:07:34,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 15:07:34,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:07:34,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:07:34,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:07:34,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:07:34,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:07:34,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 932 [2020-10-12 15:07:34,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:07:34,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:34,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:07:34,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-12 15:07:34,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:07:34,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 15:07:34,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:07:34,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:07:34,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:07:34,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:07:34,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:07:34,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1003 [2020-10-12 15:07:34,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:07:34,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:34,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:07:34,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-12 15:07:34,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:07:34,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-12 15:07:34,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:07:34,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:07:34,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:07:34,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-12 15:07:34,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:07:35,137 INFO L134 CoverageAnalysis]: Checked inductivity of 1456 backedges. 332 proven. 5 refuted. 0 times theorem prover too weak. 1119 trivial. 0 not checked. [2020-10-12 15:07:35,137 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1928285981] [2020-10-12 15:07:35,137 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:07:35,138 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 15:07:35,138 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526991565] [2020-10-12 15:07:35,139 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 15:07:35,139 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:07:35,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 15:07:35,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 15:07:35,140 INFO L87 Difference]: Start difference. First operand 15386 states and 16611 transitions. Second operand 5 states. [2020-10-12 15:07:39,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:07:39,272 INFO L93 Difference]: Finished difference Result 29392 states and 31854 transitions. [2020-10-12 15:07:39,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 15:07:39,274 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1202 [2020-10-12 15:07:39,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:07:39,306 INFO L225 Difference]: With dead ends: 29392 [2020-10-12 15:07:39,306 INFO L226 Difference]: Without dead ends: 15409 [2020-10-12 15:07:39,324 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 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 15:07:39,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15409 states. [2020-10-12 15:07:39,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15409 to 15386. [2020-10-12 15:07:39,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15386 states. [2020-10-12 15:07:39,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15386 states to 15386 states and 16607 transitions. [2020-10-12 15:07:39,524 INFO L78 Accepts]: Start accepts. Automaton has 15386 states and 16607 transitions. Word has length 1202 [2020-10-12 15:07:39,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:07:39,526 INFO L479 AbstractCegarLoop]: Abstraction has 15386 states and 16607 transitions. [2020-10-12 15:07:39,526 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 15:07:39,526 INFO L276 IsEmpty]: Start isEmpty. Operand 15386 states and 16607 transitions. [2020-10-12 15:07:39,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1262 [2020-10-12 15:07:39,553 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:07:39,555 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 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, 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, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:07:39,555 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-12 15:07:39,555 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:07:39,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:07:39,556 INFO L82 PathProgramCache]: Analyzing trace with hash 470193619, now seen corresponding path program 1 times [2020-10-12 15:07:39,556 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:07:39,557 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1440024164] [2020-10-12 15:07:39,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:07:39,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:07:39,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:40,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:40,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:41,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:44,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:07:44,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1285 [2020-10-12 15:07:44,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 15:07:44,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5064 [2020-10-12 15:07:44,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:07:44,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:07:44,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1213 [2020-10-12 15:07:44,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-12 15:07:44,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:07:44,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:07:44,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:07:44,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:44,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:07:44,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:07:44,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:07:44,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 15:07:44,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:07:44,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:07:44,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:07:44,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:07:44,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:07:44,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:07:44,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:07:44,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:45,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:07:45,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-12 15:07:45,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:07:45,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-12 15:07:45,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:07:45,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:07:45,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:07:45,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:07:45,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:07:45,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:07:45,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:07:45,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:45,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:07:45,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-12 15:07:45,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:07:45,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-12 15:07:45,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:07:45,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:07:45,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:07:45,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:07:45,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:07:45,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-12 15:07:45,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:07:45,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:45,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:07:45,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 15:07:45,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:07:45,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 15:07:45,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:07:45,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:07:45,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:07:45,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:07:45,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:07:45,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-12 15:07:45,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:07:45,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:45,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:07:45,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-12 15:07:45,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:07:45,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-12 15:07:45,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:07:45,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:07:45,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:07:45,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:07:45,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:07:45,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:07:45,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:07:45,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:45,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:07:45,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 15:07:45,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:07:45,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 15:07:45,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:07:45,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:07:45,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:07:45,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:07:45,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:07:45,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-12 15:07:45,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:07:45,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:45,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:07:45,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-12 15:07:45,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:07:45,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 15:07:45,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:07:45,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:07:45,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:07:45,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:07:45,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:07:45,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 932 [2020-10-12 15:07:45,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:07:45,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:45,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:07:45,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-12 15:07:45,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:07:45,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 15:07:45,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:07:45,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:07:45,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:07:45,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:07:45,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:07:45,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1003 [2020-10-12 15:07:45,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:07:45,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:45,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:07:45,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 195 [2020-10-12 15:07:45,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:07:45,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-12 15:07:45,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:07:45,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:07:45,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:07:45,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 189 [2020-10-12 15:07:45,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:07:46,390 INFO L134 CoverageAnalysis]: Checked inductivity of 1574 backedges. 332 proven. 5 refuted. 0 times theorem prover too weak. 1237 trivial. 0 not checked. [2020-10-12 15:07:46,391 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1440024164] [2020-10-12 15:07:46,391 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:07:46,391 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 15:07:46,391 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058001902] [2020-10-12 15:07:46,392 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 15:07:46,393 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:07:46,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 15:07:46,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 15:07:46,393 INFO L87 Difference]: Start difference. First operand 15386 states and 16607 transitions. Second operand 5 states. [2020-10-12 15:07:54,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:07:54,013 INFO L93 Difference]: Finished difference Result 35047 states and 38484 transitions. [2020-10-12 15:07:54,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 15:07:54,014 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1261 [2020-10-12 15:07:54,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:07:54,059 INFO L225 Difference]: With dead ends: 35047 [2020-10-12 15:07:54,059 INFO L226 Difference]: Without dead ends: 21079 [2020-10-12 15:07:54,078 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 15:07:54,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21079 states. [2020-10-12 15:07:54,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21079 to 20354. [2020-10-12 15:07:54,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20354 states. [2020-10-12 15:07:54,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20354 states to 20354 states and 21879 transitions. [2020-10-12 15:07:54,363 INFO L78 Accepts]: Start accepts. Automaton has 20354 states and 21879 transitions. Word has length 1261 [2020-10-12 15:07:54,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:07:54,364 INFO L479 AbstractCegarLoop]: Abstraction has 20354 states and 21879 transitions. [2020-10-12 15:07:54,364 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 15:07:54,364 INFO L276 IsEmpty]: Start isEmpty. Operand 20354 states and 21879 transitions. [2020-10-12 15:07:54,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1281 [2020-10-12 15:07:54,394 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:07:54,395 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 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, 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, 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, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:07:54,395 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-12 15:07:54,395 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:07:54,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:07:54,396 INFO L82 PathProgramCache]: Analyzing trace with hash 291022606, now seen corresponding path program 1 times [2020-10-12 15:07:54,396 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:07:54,397 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [840279589] [2020-10-12 15:07:54,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:07:54,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:07:54,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:55,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:55,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:56,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:59,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:07:59,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1304 [2020-10-12 15:07:59,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 15:07:59,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5123 [2020-10-12 15:07:59,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:07:59,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 15:07:59,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1232 [2020-10-12 15:07:59,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-12 15:07:59,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:08:00,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:08:00,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:08:00,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:08:00,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:08:00,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:08:00,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:08:00,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 15:08:00,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:08:00,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:08:00,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:08:00,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:08:00,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:08:00,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:08:00,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:08:00,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:08:00,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:08:00,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-12 15:08:00,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:08:00,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-12 15:08:00,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:08:00,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:08:00,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:08:00,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:08:00,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:08:00,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:08:00,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:08:00,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:08:00,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:08:00,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-12 15:08:00,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:08:00,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-12 15:08:00,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:08:00,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:08:00,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:08:00,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:08:00,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:08:00,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-12 15:08:00,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:08:00,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:08:00,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:08:00,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 15:08:00,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:08:00,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 15:08:00,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:08:00,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:08:00,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:08:00,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:08:00,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:08:00,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-12 15:08:00,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:08:00,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:08:00,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:08:00,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-12 15:08:00,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:08:00,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-12 15:08:00,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:08:00,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:08:00,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:08:00,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:08:00,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:08:00,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:08:00,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:08:00,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:08:00,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:08:00,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 15:08:00,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:08:00,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 15:08:00,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:08:00,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:08:00,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:08:00,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:08:00,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:08:00,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-12 15:08:00,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:08:00,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:08:00,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:08:00,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-12 15:08:00,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:08:00,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 15:08:00,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:08:00,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:08:00,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:08:00,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:08:00,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:08:00,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 932 [2020-10-12 15:08:00,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:08:00,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:08:00,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:08:00,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-12 15:08:00,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:08:00,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 15:08:00,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:08:00,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:08:00,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:08:00,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:08:00,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:08:00,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1003 [2020-10-12 15:08:00,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:08:00,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:08:00,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:08:00,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 214 [2020-10-12 15:08:00,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:08:00,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-12 15:08:00,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:08:00,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:08:00,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:08:00,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 208 [2020-10-12 15:08:00,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:08:01,673 INFO L134 CoverageAnalysis]: Checked inductivity of 1612 backedges. 332 proven. 5 refuted. 0 times theorem prover too weak. 1275 trivial. 0 not checked. [2020-10-12 15:08:01,673 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [840279589] [2020-10-12 15:08:01,673 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:08:01,673 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-12 15:08:01,673 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635940924] [2020-10-12 15:08:01,674 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 15:08:01,674 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:08:01,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 15:08:01,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-12 15:08:01,675 INFO L87 Difference]: Start difference. First operand 20354 states and 21879 transitions. Second operand 8 states. [2020-10-12 15:08:06,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:08:06,193 INFO L93 Difference]: Finished difference Result 39412 states and 42477 transitions. [2020-10-12 15:08:06,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-12 15:08:06,194 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1280 [2020-10-12 15:08:06,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:08:06,224 INFO L225 Difference]: With dead ends: 39412 [2020-10-12 15:08:06,224 INFO L226 Difference]: Without dead ends: 20370 [2020-10-12 15:08:06,247 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2020-10-12 15:08:06,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20370 states. [2020-10-12 15:08:06,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20370 to 20352. [2020-10-12 15:08:06,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20352 states. [2020-10-12 15:08:06,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20352 states to 20352 states and 21871 transitions. [2020-10-12 15:08:06,468 INFO L78 Accepts]: Start accepts. Automaton has 20352 states and 21871 transitions. Word has length 1280 [2020-10-12 15:08:06,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:08:06,469 INFO L479 AbstractCegarLoop]: Abstraction has 20352 states and 21871 transitions. [2020-10-12 15:08:06,469 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 15:08:06,469 INFO L276 IsEmpty]: Start isEmpty. Operand 20352 states and 21871 transitions. [2020-10-12 15:08:06,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1293 [2020-10-12 15:08:06,495 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:08:06,496 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:08:06,497 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-12 15:08:06,497 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:08:06,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:08:06,498 INFO L82 PathProgramCache]: Analyzing trace with hash -1109132355, now seen corresponding path program 1 times [2020-10-12 15:08:06,498 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:08:06,498 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [718848131] [2020-10-12 15:08:06,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:08:06,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:08:06,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:08:06,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:08:09,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:08:09,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:08:11,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:08:11,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:08:11,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1318 [2020-10-12 15:08:11,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 15:08:11,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5059 [2020-10-12 15:08:11,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:08:11,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:08:11,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 849 [2020-10-12 15:08:11,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-12 15:08:11,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:08:12,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:08:12,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:08:12,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:08:12,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:08:12,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:08:12,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:08:12,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 15:08:12,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:08:12,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:08:12,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:08:12,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:08:12,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:08:12,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:08:12,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:08:12,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:08:12,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:08:12,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-12 15:08:12,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:08:12,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-12 15:08:12,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:08:12,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:08:12,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:08:12,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:08:12,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:08:12,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:08:12,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:08:12,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:08:12,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:08:12,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-12 15:08:12,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:08:12,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-12 15:08:12,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:08:12,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:08:12,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:08:12,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:08:12,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:08:12,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-12 15:08:12,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:08:12,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:08:12,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:08:12,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 15:08:12,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:08:12,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 15:08:12,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:08:12,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:08:12,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:08:12,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:08:12,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:08:12,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-12 15:08:12,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:08:12,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:08:12,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:08:12,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-12 15:08:12,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:08:12,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 135 [2020-10-12 15:08:12,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:08:12,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:08:12,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:08:12,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 301 [2020-10-12 15:08:12,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:08:12,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:08:12,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:08:12,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:08:12,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:08:12,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 15:08:12,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:08:12,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 15:08:12,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:08:12,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:08:12,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:08:12,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-12 15:08:12,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:08:12,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-12 15:08:12,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:08:12,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:08:12,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:08:12,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-12 15:08:12,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:08:12,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-12 15:08:12,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:08:12,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:08:12,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:08:12,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-12 15:08:12,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:08:12,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 932 [2020-10-12 15:08:12,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:08:12,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:08:12,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:08:12,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-12 15:08:12,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:08:12,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 15:08:12,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:08:12,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:08:12,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-10-12 15:08:12,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:08:12,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:08:12,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1003 [2020-10-12 15:08:12,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:08:12,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:08:12,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:08:12,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-12 15:08:12,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:08:12,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-12 15:08:12,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:08:12,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:08:12,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-10-12 15:08:12,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:08:12,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:08:12,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1140 [2020-10-12 15:08:12,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:08:12,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:08:12,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:08:12,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-12 15:08:12,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:08:12,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 15:08:12,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:08:12,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:08:12,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-12 15:08:12,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:08:12,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:08:13,691 INFO L134 CoverageAnalysis]: Checked inductivity of 1948 backedges. 596 proven. 242 refuted. 0 times theorem prover too weak. 1110 trivial. 0 not checked. [2020-10-12 15:08:13,692 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [718848131] [2020-10-12 15:08:13,692 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:08:13,692 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 15:08:13,692 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757540947] [2020-10-12 15:08:13,693 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 15:08:13,693 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:08:13,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 15:08:13,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 15:08:13,693 INFO L87 Difference]: Start difference. First operand 20352 states and 21871 transitions. Second operand 7 states. [2020-10-12 15:08:22,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:08:22,342 INFO L93 Difference]: Finished difference Result 52259 states and 57059 transitions. [2020-10-12 15:08:22,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 15:08:22,343 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1292 [2020-10-12 15:08:22,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:08:22,411 INFO L225 Difference]: With dead ends: 52259 [2020-10-12 15:08:22,411 INFO L226 Difference]: Without dead ends: 33325 [2020-10-12 15:08:22,445 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 26 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 15:08:22,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33325 states. [2020-10-12 15:08:22,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33325 to 33293. [2020-10-12 15:08:22,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33293 states. [2020-10-12 15:08:22,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33293 states to 33293 states and 35876 transitions. [2020-10-12 15:08:22,873 INFO L78 Accepts]: Start accepts. Automaton has 33293 states and 35876 transitions. Word has length 1292 [2020-10-12 15:08:22,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:08:22,874 INFO L479 AbstractCegarLoop]: Abstraction has 33293 states and 35876 transitions. [2020-10-12 15:08:22,874 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 15:08:22,874 INFO L276 IsEmpty]: Start isEmpty. Operand 33293 states and 35876 transitions. [2020-10-12 15:08:22,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1353 [2020-10-12 15:08:22,896 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:08:22,896 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 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, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:08:22,897 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-12 15:08:22,897 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:08:22,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:08:22,897 INFO L82 PathProgramCache]: Analyzing trace with hash 867740686, now seen corresponding path program 1 times [2020-10-12 15:08:22,897 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:08:22,898 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1835596592] [2020-10-12 15:08:22,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:08:23,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:08:23,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:08:23,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:08:23,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:08:28,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:08:28,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1378 [2020-10-12 15:08:28,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 15:08:28,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-10-12 15:08:28,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:08:28,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:08:28,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1077 [2020-10-12 15:08:28,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 140 [2020-10-12 15:08:28,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:08:28,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:08:28,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:08:28,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:08:28,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:08:28,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:08:28,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:08:28,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 15:08:28,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:08:28,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:08:28,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:08:28,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:08:28,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:08:28,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:08:28,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:08:28,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:08:28,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:08:28,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-12 15:08:28,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:08:28,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-12 15:08:28,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:08:28,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:08:28,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:08:28,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:08:28,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:08:28,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:08:28,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:08:28,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:08:28,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:08:28,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-12 15:08:28,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:08:28,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-12 15:08:28,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:08:28,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:08:28,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:08:28,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:08:28,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:08:28,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-12 15:08:28,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:08:28,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:08:28,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:08:28,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 15:08:28,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:08:28,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 15:08:28,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:08:28,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:08:28,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:08:28,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:08:28,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:08:28,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-12 15:08:28,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:08:28,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:08:28,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:08:28,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 317 [2020-10-12 15:08:28,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:08:28,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-12 15:08:28,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:08:28,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:08:28,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:08:28,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:08:28,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:08:28,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:08:28,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:08:28,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:08:28,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:08:28,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-12 15:08:28,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:08:28,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 15:08:28,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:08:28,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:08:28,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:08:28,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:08:28,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:08:28,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 849 [2020-10-12 15:08:28,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:08:28,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:08:28,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:08:28,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-12 15:08:28,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:08:28,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 15:08:28,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:08:28,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:08:28,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:08:28,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:08:28,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:08:28,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 991 [2020-10-12 15:08:28,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:08:28,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:08:28,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:08:28,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-12 15:08:28,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:08:28,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 15:08:28,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:08:28,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:08:28,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:08:28,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-12 15:08:28,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:08:28,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1063 [2020-10-12 15:08:28,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:08:29,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:08:29,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:08:29,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-12 15:08:29,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:08:29,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-10-12 15:08:29,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:08:29,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:08:29,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:08:29,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-10-12 15:08:29,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:08:29,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1200 [2020-10-12 15:08:29,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:08:29,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:08:29,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:08:29,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-12 15:08:29,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:08:29,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 15:08:29,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:08:29,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:08:29,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-12 15:08:29,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:08:29,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:08:30,402 INFO L134 CoverageAnalysis]: Checked inductivity of 2111 backedges. 892 proven. 87 refuted. 0 times theorem prover too weak. 1132 trivial. 0 not checked. [2020-10-12 15:08:30,403 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1835596592] [2020-10-12 15:08:30,403 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:08:30,403 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 15:08:30,403 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144205869] [2020-10-12 15:08:30,404 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 15:08:30,404 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:08:30,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 15:08:30,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 15:08:30,404 INFO L87 Difference]: Start difference. First operand 33293 states and 35876 transitions. Second operand 7 states. [2020-10-12 15:08:38,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:08:38,780 INFO L93 Difference]: Finished difference Result 65936 states and 71336 transitions. [2020-10-12 15:08:38,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 15:08:38,781 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1352 [2020-10-12 15:08:38,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:08:38,835 INFO L225 Difference]: With dead ends: 65936 [2020-10-12 15:08:38,835 INFO L226 Difference]: Without dead ends: 34061 [2020-10-12 15:08:38,865 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 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 15:08:38,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34061 states. [2020-10-12 15:08:39,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34061 to 34041. [2020-10-12 15:08:39,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34041 states. [2020-10-12 15:08:39,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34041 states to 34041 states and 36665 transitions. [2020-10-12 15:08:39,211 INFO L78 Accepts]: Start accepts. Automaton has 34041 states and 36665 transitions. Word has length 1352 [2020-10-12 15:08:39,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:08:39,212 INFO L479 AbstractCegarLoop]: Abstraction has 34041 states and 36665 transitions. [2020-10-12 15:08:39,212 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 15:08:39,212 INFO L276 IsEmpty]: Start isEmpty. Operand 34041 states and 36665 transitions. [2020-10-12 15:08:39,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1376 [2020-10-12 15:08:39,233 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:08:39,233 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:08:39,234 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-12 15:08:39,234 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:08:39,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:08:39,235 INFO L82 PathProgramCache]: Analyzing trace with hash 1788592594, now seen corresponding path program 1 times [2020-10-12 15:08:39,235 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:08:39,235 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [778503520] [2020-10-12 15:08:39,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:08:39,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:08:39,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:08:39,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:08:40,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:08:44,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:08:44,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1403 [2020-10-12 15:08:44,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 15:08:44,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5026 [2020-10-12 15:08:44,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:08:44,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:08:44,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1102 [2020-10-12 15:08:44,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 140 [2020-10-12 15:08:44,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:08:44,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:08:44,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:08:44,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:08:44,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:08:44,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:08:44,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:08:44,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 15:08:44,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:08:44,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:08:44,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:08:44,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:08:44,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:08:44,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:08:44,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:08:44,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:08:44,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:08:44,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-12 15:08:44,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:08:44,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-12 15:08:44,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:08:44,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:08:44,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:08:44,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:08:44,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:08:44,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:08:44,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:08:44,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:08:44,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:08:44,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-12 15:08:44,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:08:44,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-12 15:08:44,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:08:44,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:08:44,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:08:44,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:08:44,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:08:44,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-12 15:08:44,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:08:44,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:08:44,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:08:44,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 15:08:44,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:08:44,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 15:08:44,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:08:44,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:08:44,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:08:44,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:08:44,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:08:45,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-12 15:08:45,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:08:45,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:08:45,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:08:45,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 317 [2020-10-12 15:08:45,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:08:45,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-12 15:08:45,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:08:45,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:08:45,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:08:45,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:08:45,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:08:45,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:08:45,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:08:45,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:08:45,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:08:45,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-12 15:08:45,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:08:45,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 15:08:45,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:08:45,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:08:45,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:08:45,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:08:45,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:08:45,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 849 [2020-10-12 15:08:45,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:08:45,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:08:45,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:08:45,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 15:08:45,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:08:45,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 15:08:45,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:08:45,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:08:45,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:08:45,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:08:45,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:08:45,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 925 [2020-10-12 15:08:45,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:08:45,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:08:45,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:08:45,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-12 15:08:45,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:08:45,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 15:08:45,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:08:45,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:08:45,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:08:45,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:08:45,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:08:45,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1015 [2020-10-12 15:08:45,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:08:45,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:08:45,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:08:45,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-12 15:08:45,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:08:45,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 15:08:45,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:08:45,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:08:45,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:08:45,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-12 15:08:45,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:08:45,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1086 [2020-10-12 15:08:45,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:08:45,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:08:45,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:08:45,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-12 15:08:45,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:08:45,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-12 15:08:45,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:08:45,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:08:45,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:08:45,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-10-12 15:08:45,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:08:45,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1223 [2020-10-12 15:08:45,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:08:45,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:08:45,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:08:45,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-12 15:08:45,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:08:45,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 15:08:45,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:08:45,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:08:45,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-12 15:08:45,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:08:45,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:08:46,382 INFO L134 CoverageAnalysis]: Checked inductivity of 2471 backedges. 991 proven. 87 refuted. 0 times theorem prover too weak. 1393 trivial. 0 not checked. [2020-10-12 15:08:46,383 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [778503520] [2020-10-12 15:08:46,383 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:08:46,383 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 15:08:46,383 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545152754] [2020-10-12 15:08:46,384 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 15:08:46,385 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:08:46,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 15:08:46,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 15:08:46,385 INFO L87 Difference]: Start difference. First operand 34041 states and 36665 transitions. Second operand 7 states.